curly…straight…curly…straight…curly…straight…curly…[CHOMP!]
(Homer wakes up from a nightmare, stares at a picture of Bart on the wall) “That’s the guy, that’s the guy from my dreams! Keep smiling, smart guy…”
- Tennis the Menace
(Homer is giving Bart some encouragement during the golf tournament) “Remember what Vince Lombardi said: If you lose you’re out of the family!”
- Dead Putting Society
(Homer is at Bart’s funeral) “…yeah son, I got off work today!” Marge: “Homer! How could you think of such a thing when you’ll never see your son again.” Homer: (long pause) Oh, your right! (sobbing) I’m gonna miss you, boy…"
- Bart the General ?
Marge: Bart honey, I made you an extra-warm sweater you can wear while you’re
down in the well.
Bart: Mom, it’s too big.
Homer: Don’t worry, you’ll grow into it.
Marge: Homer!
- Radio Bart
From the episode where Marge is arrested for shoplifting:
Bully (Nelson?): Hah hah! Your mom’s a jailbird!!
Bart: So’s yours.
Bully: Oh yeah. Let’s play!
Then there was the episode where Homer bought Lisa a pony, and he had to work two jobs to pay for all the hay. Lisa finally realizes that the pony is too expensive, and gives it up. Homer then quits his second job at the Kwik-e-Mart, and goes skipping merrily down the sidewalk. Apu, watching him go, opines:
(paraphrasing)
“He slept on the job, he was rude to the customers, he stole, and he ate all the food. There goes the best damned employee I ever had.”
From the casino episode, when the kids are whining about “when’s Mom coming home?”
Homer replies, “Mommy has a new job now. She’s a slot jockey!”
Barney wakes up on a Greek freighter:
“Oh, no! Not again!”
The whole episode where Homer gains an extraordinary amount of weight to work at home (and leaves a substitute to punch keys) is priceless. However, one of the funniest bits is when Lisa explains to another kid on the schoolbus that her dad is not a food addict that chomps on everything he finds.
Cut to Homer, next to the bus, in an Ice Cream truck eating his way into a cone. 
Since it was on locally a couple nights ago: The entire episode “Margical History Tour” was hilarious. One of the best late-season episodes.
Homer as Henry VIII
“My name’s synonymous with gluttony, I’ll always eat a turkey or a ham…”
“I could have married the King of France. He wasn’t always so concerned about procreation - ding-a-ling-ling? Know what I mean?”
“Because you stuck to your principles Flanders, I’m going to cannonize you.”
<Fires him out of a cannon>: “I can see my hooooooooouuuuuuuse!!!”
Lenny and Carl as Lewis and Clark: “The Columbia River! Now to ride this baby down to the ocean and get us some sweet mermaid sex!”
Nelson as Beethoven: “Ha-ha-ha-HAAAAAAW! Ha-ha-ha-HAAAAAAAAAW!!”
[Nitpick]
It’s Mike Scioscia
[/Nitpick]
Along the same lines as your quote, though…:
Homer is discussing his college days with Lisa.
Homer: “I hate Springfield A & M so much…”
Lisa: “Dad, you went to Springfield A & M. You hate Springfield U.”
Homer: “…So much.”
That’s a good episode, but it’s actually Mandy Patinkin.
Or in the episode where Selma(?) married Troy McClure. Troy reveals that he’s marrying Selma to get back in the “good press” category. The next day, at the wedding:
Minister: If anyone has any reason why these two should not be joined in matrimony…
Camera pans to Homer. After a second, it zooms to Homer’s brain, which is playing Gary Glitter’s “Rock & Roll”
Lisa: Dad, I had a bad dream.
Homer (as he is going back to sleep): Tell daddy all about it.
Lisa: Well, it involved the Boogeyman and…
Homer: BOOGEYMAN!
(Goes to Bart’s room and wakes him up)
Homer: Bart, I don’t want to alarm you, but there may be a Boogeyman or men in this house.
(Marge comes home to find the three in the master bedroom. They’re hiding behind a mattress and Homer has a shotgun)
Marge: What’s going on here?
Homer: Oh nothing Marge. Just a little incident involving the Boogeyman, which wouldn’t have happened if you had stayed here and kept me from being stupid!
There’s way too many to list, but the most recent that made me really laugh out loud…
I was laying in bed the other night with my girlfriend asleep next to me watching one of the clip shows (“Gump Roast”) and this one part had me laughing so hard I was choking and gagging trying unsuccessfully not to wake her up:
Homer is snowskiing downhill, his legs are spreading and he’s losing control:
Homer: “Ok, don’t panic, remember what the instructor said!”
Instructor (in a thought bubble): “If you ever get into trouble, all you need to do is…”
Flanders (interrupting within the thought bubble, wearing a skintight skisuit): “Feels like I’m wearing nothin’ at all! Nothin’ at all! Nothin’ at all!” (While shaking his butt up-close)
I wish I could remember which episode that was originally from.
Homer: “Jesus! Allah! Buddah! I love you all!”
Homer: “Tramampoline! Trapapoline!”
Willie’s one-man band performing “Maniac”
Kent Brockman: “The spacecraft has apparently been taken over – ‘conqured’ if you will – by a master race of giant space ants. It’s difficult to tell from this vantage point whether they will consume the captive earth men or merely enslave them. One thing is for certain: there is no stopping them; the ants will soon be here. And I for one welcome our new insect overlords. I’d like to remind them that as a trusted TV personality I could be helpful in rounding up others to toil in their underground sugar caves.”
James Woods: “But as for me, I’m off to battle aliens on a faraway planet.”
Marge: “That sounds like a good movie!”
James Woods: “Yes…yes… uh, a movie… yes…”
Capt. McAllister: “Arr, matey. Nary a warning light to be seen. 'Tis clear sailing ahead for our precious cargo.”
Sailor: “Uh, would that be the hot pants, sir?”
Scientist: “How much time do we have professor?”
Frink: “Well according to my calculations, the robots won’t go berserk for at least 24 hours.”
(The robots go berserk.)
Frink: “Oh, I forgot to er, carry the one.”
Homer: “You made Lisa cry, then I cried, then Maggie laughed. She’s such a little trooper.”
Scorpio: “By the way Homer, what’s your least favorite country, Italy or France?”
Homer: “Uh…France”
Scorpio: “Ha, Ha! Nobody ever says Italy”
“Young lady, I’ve had enough Vassar-bashing out of you!”
Hello Joe! … Iron helps us play! … the crib is for the baaaby! …
Smithers: Uh, I don’t think women and seamen mix.
Burns: We know what you think.
From Homer at the Bat:
Barney: And I say, England’s greatest Prime Minister was Lord Palmerston!
Wade Boggs: Pitt the Elder!
Barney: Lord Palmerston!!
Wade Boggs (poking him): Pitt. the. Elder!!
Barney: Okay, you asked for it, bud! (punches him out)
Moe: Yeah, that’s showing him, Barney! (scoffing) Pitt the Elder…
Barney: Lord Palmerston!!! (punches Moe out)
Similarly:
“I will NOT be a Gamecock!”
Homer (as chief of the Shoshone, upon meeting Lewis and Clark): Long have we awaited the coming of the white man. And Carl.
That’s the funniest line they’ve had in years.
The one where Lisa goes to a fortune teller who looks into a crystal ball and shows her future? Are you sure? Because if that’s true, then Mandy Patinkin does one hell of a Hugh Grant impression.