James Bond: “Exceptionally fine shot.”
Thug: “I didn’t know there was a pool down there.”
Two great tough-guy replies to “I love you”:
Han Solo: “I know.”
Bill Adama: “About time.”
From Sin City:
Dwight: “I’m Shellie’s new boyfriend and I’m out of my mind. If you so much as talk to her or even think her name, I’ll cut you in ways that’ll make you useless to a woman.”
“Well, if we do fight, I’m only going to use my right thumb. My left thumb is much too powerful for you.” : Sean Connery, Presidio
“Have you…killed people?”
“Ya but they were all bad.”
I also liked when he explained exactly how he was going to kill everyone while under the truth syrum.
From Starship Troopers
“I’m promoting you to corporal…until you are killed or I find someone better.”
No mention of Commando?
“Don’t bother my friend…he’s dead tired.”
“Remember when I said I’d kill you last? I lied.”
“What happened to Sully?”
“I let him go.”
“Let off some steam, Bennett.”
From Rising Sun
“I should warn you, I’m a black belt.”
“Of course you are dear.”
[kicks bouncers ass with his thumb]
“They say if you must resort to violence, you’ve already lost…what do you think?”
Nobody has yet quoted The Wild Bunch? “If they move, kill 'em!”
“Do you know anything about a guy going around playing the harmonica? He’s someone you’d remember. Instead of talking, he plays. And when he better play, he talks.” – Cheyenne, Once Upon A Time In The West
“What am I doing? I’m talking to an empty telephone…‘Cause there is a dead man on the other end of this fuckin’ line.” – Neil McCauley, Heat
“I’m angry. I’m very angry, Ralph. You know, you can ball my wife if she wants you to. You can lounge around here on her sofa, in her ex-husband’s dead-tech, post-modernistic bullshit house if you want to. But you do not get to watch my fucking television set!” – Vincent Hanna, Heat
“I once removed a guy’s appendix with a grapefruit spoon.” – “Sam”, Ronin
“You want to talk about an ambush? I ambushed you with a cup of coffee!” – “Sam”, Ronin
“My motherfucker is so cool, when he goes to bed, sheep count him.” – Don ‘Pinky’ Pincus, Heist
“He ain’t gonna shoot me?..Then he hadn’t ought to point a gun at me. It’s insincere.” – Joe Moore, Heist
“Do you wanna gossip or do you wanna shoot somebody?” – Jones, Spartan
“Don’t you teach 'em knife fighting. Teach 'em to kill. That way, they meet some sonofabitch who studied knife fighting, they send his soul to hell.” – MSgt Robert ‘Bobby’ Scott, Spartan
“Look, you go home some wave their hats, some turn their backs. It’s all the same. None of them know where you’ve been.” – MSgt Robert ‘Bobby’ Scott, Spartan
“I’m from the United States of kiss-my-ass.” – Mike, House of Games
“That watch costs more than you car. I made $970,000 last year. How much you make? You see pal, that’s who I am, and you’re nothing. Nice guy? I don’t give a shit. Good father? Fuck you! Go home and play with your kids. You wanna work here - close! You think this is abuse? You think this is abuse, you cocksucker? You can’t take this, how can you take the abuse you get on a sit? You don’t like it, leave.” – Blake, Glengarry Glen Ross
Stranger
Heist
DeVito: “Wait! Don’t you want to hear my last words?”
Hackman: “I just did.” ::shoots him::
This is my favorite most-recent bad-ass quote. It was a great line.
But IMO, anything Clint Eastwood says in *any *of his bad-ass roles are still the best.
**True Lies **reminded me of True Romance which has some good ones:
Coccotti: That smarts, doesn’t it? Getting slammed in the nose. Fucks you all up. You get that pain shootin’ through your brain, your eyes fill up with water. That ain’t any kind of fun, but what I have to offer you, that’s as good as it’s gonna get. And it won’t ever get that good again.
And
Virgil: Now the first time you kill somebody, that’s the hardest. I don’t give a shit if you’re fuckin’ Wyatt Earp or Jack the Ripper. Remember that guy in Texas? The guy up in that fuckin’ tower that killed all them people? I’ll bet you green money that first little black dot he took a bead on, that was the bitch of the bunch. First one is tough, no fuckin’ foolin’. The second one… the second one ain’t no fuckin’ Mardis Gras either, but it’s better than the first one ‘cause you still feel the same thing, y’know… except it’s more diluted, y’know it’s… it’s better. I threw up on the first one, you believe that? Then the third one… the third one is easy, you level right off. It’s no problem. Now… shit… now I do it just to watch their fuckin’ expression change.
and
Floyd: Don’t condescend me, man. I’ll fuckin’ kill ya, man.
Plus
Everything Clifford Worley says to Coccotti took a LOT of balls.
[turning a flamethrower on a bad guy]
Action Jackson: How do you like your ribs?
from Cool Hand Luke
Captain, Road Prison 36: What we got here is… failure to communicate.
**
Captain, Road Prison 36**: You run one time, you got yourself a set of chains. You run twice you got yourself two sets. You ain’t gonna need no third set, 'cause you gonna get your mind right.
also, pretty much everything Al Swearengen said on Deadwood
AL: I’d say that’s naming horseshit virtue. Purposes butt up against each other, and
the strong call “consolidating” bending the weak to their will. (Captain Turner
steps out) And I’d add that whoever’s behind me is about to study his guts.
Al Swearengen: As damp as your hands are, why do you continuously lick your fuckin’ thumb?
** E.B**.: Habit, I suppose.
Al Swearengen: Could you learn the habit of lickin’ a fuckin’ stump?
There’s cool menace in J.B. Books’ motto, “I won’t be wronged, I won’t be insulted, and I won’t be laid a hand on. I don’t do these things to other people, and I expect the same in return.” (John Wayne, in The Shootist)
If I’m ever lined up against a wall to be shot, I hope I can come up with something as tough as Breaker Morant’s final, “Shoot straight, you bastards.” (Edward Woodward, Breaker Morant)
The Sundance Kid (Robert Redford) is almost bored with his own toughness in the opening card game in Butch Cassidy and the Sundance Kid.
Card Player: “You haven’t lost a hand since you got the deal. What’s the secret to your success?”
Sundance: “Prayer.”
…
Card Player: “I didn’t know you was the Sundance Kid when I said you was cheating. If I draw on you, you’ll kill me.”
Sundance: “There’s that possibility.”
Is it OK if I offer one from real life? Winston Churchill had some of the best tough guy lines. I love, “We are waiting for the long-promised invasion. So are the fishes.”
Another Clint Eastwood line, from The Outlaw Josey Wales:
“I wish we had time to bury them fellas.”
“To hell with them fellas. Buzzards gotta eat, same as worms.”
Another one from The Usual Suspects:
Interrogation Cop: You know what happens if you do another turn in the joint?
Hockney: Fuck your father in the shower and then have a snack? Are you going to charge me dickhead?
Bernard, I want you to know… that I try. When Jean and the kids at the school tell me that I’m supposed to control my violent temper, and be passive and nonviolent like they are, I try. I really try. Though when I see this girl… of such a beautiful spirit… so degraded… and this boy… that I love… sprawled out by this big ape here… and this little girl, who is so special to us we call her “God’s little gift of sunshine”… and I think of the number of years that she’s going to have to carry in her memory… the savagery of this idiotic moment of yours… I just go BERSERK!
From Reservoir Dogs:
From 300:
Courtesy IMDB.
From Planet of the Apes: “Get your stinking paws off me, you damned dirty ape!”
From Rocky III:
Clubber Lang: I’m going to bust you up.
Rocky Balboa: Go for it.
Will Riker had one in ST:TNG: Riker participates in an officer exchange program with the Klingons. During a power struggle, Riker punches a Klingon superior officer as a rite of passage. When his replacement comes up to challenge Riker, Will says "…follow my orders. Or do you prefer the title of ‘prisoner’ to that of ‘officer’? "
Okay, it’s paraphrased, but I can’t remember it all.
Although, I do try to use the this to that of that joke as much as I can. 
One of my favorites from The Maltese Falcon:
Sam Spade: “When you’re slapped, you’ll take it and like it!”
From Reservoir Dogs:
Mr White: If you shoot this man, you die next. Repeat. If you shoot this man, you die next.
Mr. Pink: I don’t wanna kill anybody. But if I gotta get out that door, and you’re standing in my way, one way or the other, you’re gettin’ outta my way.
From Pulp Fiction:
Winston Wolfe: If I’m curt with you it’s because time is a factor. I think fast, I talk fast and I need you guys to act fast if you wanna get out of this. So, pretty please… with sugar on top. Clean the fucking car.