“Fargin Icehole” - Johnny Dangerously (yeah, that classic)
Oh, just remembered a non-Darth-Vader Star Wars quote that comes in handy whenever we’re at the end of a product development cycle and have to slip the schedule:
"Almost there … Almost there … "
“Stay on target!” Star Wars
“It probably is Martin!!! It probably is!” Jaws
“Two weeks! Two weeks!! Twoooooo weeeeeeeks!!! Eroooo Weeeeeks! Eoooo…!!” Total Recall
“A double? Nobody orders a double.” Condor Man
“A whaaat?” Jaws
From *Ghostbusters[\i]: “Whoa, whoa, whoa. Nice shootin’ there, Tex…”
I use it whenever someone makes a painfully obvious screwup.
Nice coding there, Tex.
More Johnny Dangerously that I use all the time:
“Bastages!”
“It shoots through schools”
“<insert any phrase> once…once.”
In a related vein, I could’a sworn this line was from a movie, but can’t find it anywhere. Can someone help?
“Remind me to talk about your definition of ‘fun’ some time.”
I use WAY too many to count, but the one that crops up most often:
“I’m getting too old for this shit.”
From just about every movie ever made, it seems. 
Far too many to be healthy really…
‘Into the mud, scum queen!’ I thinks it’s from The Man With Two Brains.
My SO quotes from Star Wars ALL THE TIME - he’s quite fond of the ‘Sisterrrrrr’ one for family discussions, although all of the ones already mentioned are popular.
Phelan already covered the ‘Two weeks’ one from Total Recall.
‘I smelled the whiskey on his breath…and I liked it’ from Carrie.
The majority of our favourite quotes aren’t from a film, but from the TV series Red Dwarf. Any other fans out there should recognise delights such as:
‘They’re all dead Dave’
‘These are my shiny things’
‘FFFFIIIIISSSSHHHHH!’
'I ask you again, Mr Lister “Do you have a cat?”
“Never get off the boat.” - Apocalypse Now
“I’ve lead a strange life, Mortimer. (or the name of the person I’m talking to)” - Arsenic and Old Lace
“Men-dozz-aaaaaaaa” - The Simpsons
“I blame society” - Repo Man
“We are much alike, the Chief and I” - Return of the Pink Panther
I recently caught a friend of my doing Donald Sutherland’s whistle from The Eagle Has Landed. I heard him do it one day… recognized it, but couldn’t remember from where. It actually kept me awake that night. Finally I remembered, and when confronted with my suspicion, he sheepishly admitted he had done it on purpose.
When someone messes up, say “Look what you did, ya little JERK!” Hundred bux says that the next thing out of their mouth is “What is that from???” Hilarious, and you can use it about a thousand times a day (if you surround yourself with morons, as I have.)
Also,
“Big McLargehuge!”, “Dash Runfast”, “Brick Thickneck”, (Space Mutiny MST3K) and (in a smarmy voice) " Our chair technology is light years ahead of yours." - MST3K
I also care a great deal for “MAVERICK!!!”
Surely, you can’t be serious!
“Time to pay the piper!”
“Where’s your God now?”
“My God.”
Haha, same with us. My whole family does, and I’m kind of freaked to say this is now 3 generations. I don’t know if this is a good thing or a bad thing. Oh well, we have fun with it, though people who aren’t “in” on a particular movie often look at us weird…
ETA - It isn’t just movies and TV but also books, both popular and classical. Does that make it better? Of course even more people look at us weird when we do that, because fewer people know the books.
It’s alive “Frankenstein “
Hey, stay away from me Oscar - The Odd Couple (movie)
Not as much anymore, as I can no longer count on my friends having seen the same movies… college and high school friends were a different story.
I often manage to work “suffering from a deplorable lack of curiosity” into conversations. Someday, someone will recognize it. I believe, I believe, I know it’s silly, but I believe.
“I love the smell of napalm in the morning!” -Apocalyspe Now
“You’re not gonna get a green card with that kinda’ attitude buddy.” -Ghostbusters II
“They fck you in the drive-thru! They fck you in the drive-thru!”-Lethal Weapon 2
“They fck you in the hospital! They fck you in the hospital!” -Lethal Weapon 3
“The fck you with the cellphones! They fck you with the cellphones!” -Lethal Weapon 4
“Well OK then!” -Raising Arizona
“Yipee Kai-yay muthfuka!” -Die Hard
“Heeeeead! MOVE!” -So I Married an Axe Murderer
“I’ll have a bloody mary, a steak sandwich, and a steak sandwich.” -Fletch
Don’t talk to me like that ass-face.I don’t work for you."-Fletch
“I DIDNT KNOW THEY STACKED SHIT THAT HIGH!” -FMJ
"What is your major malfunction??!! -FMJ
Gwen DeMarco: Well, forget it! I’m not doing it! This episode was badly written! (Galaxy Quest)