Fenxy

"You just got knocked the f*ck out!"

"Just bring your @ss!" - Della Reese in "Harlem Nights", yelling after Quick when they're about to start their fight in the alley.

Ah, since you already took my #1 choice for the holidays (A Christmas Story), I'll with my #2 which is from the same movie:

"It much be French" - "How do you know?" - "Because it says Fragilely on it".

Probably "Harrey your hands are FREEZING!" or "Double Time!"

FUBAR, from Saving Private Ryan.

Heh.

"You talkin' to me?"

or "it rubs the lotion on the skin".

used to be Is everybody gay? Is this a Twilight Zone? tended to be used by students of all sexual orientations when going out in the city, and then just got adopted into everyday talk.

"Game Over Man! Game Over!!" -- Alien 2, Chet

"I love lamp." - Anchorman: The Legend of Ron Burgundy

Another Anchorman quote, "smells like Bigfoot's dick".

Apart from that, about half my conversational repertoire consists of Fear and Loathing quotes.

"I've got a bad feeling about this."

"I've lost the bleeps, the sweeps, and the creeps."

"It's a major award!"

Most of my everyday banter involves quoting Star Wars, Mel Brooks films, and Family Guy.

"Is not a tumor."

The Guvernator, 'Kindergarten Cop'

Oh wait, got another one!

Nice!, from Borat.

Most of my conversational repertoire comes from Futurama, which, since it's not a movie, doesn't count.

Otherwise I just try to sound like Morpheus from The Matrix. All the time. "Like a splinter in your mind." But then, I was trying to sound that way even before I saw the movie.

" As G-d is my witness" from Gone with the Wind. I think it often but don't say it outloud.

"You're killing me Smalls!!"

Sandlot, I believe.

Oh man I say "You're killing me Smalls" to people (Mike and Tyme included) and I'm pretty sure no one has ever picked up on why I say it. Thank you carmodyarc, you have made my month.

I too am in the "you're killin me smalls" club

my others:
"English, motherfucker, do you speak it?"
"say what again. SAY WHAT AGAIN. I dare you, I double dare you, motherfucker. Say what one more goddamn time."
-sam l. -pulp fiction

"i'm tired of all these motherfuckin _________ on this motherfuckin _______"
blanks filled in with appropriate words for the situation. ie: "i'm tired of all these motherfuckin kids on this motherfuckin bus."
-sam l. -snakes on a plane

I'm with ericjohnson on the Snakes-on-Plane reference. Also, "Fra-GEE-lay. It must be Italian!" from A Christmas Story pops out of my mouth more often than I would like to admit. I can't help it. It's always funny to me...

"English, motherfucker, do you speak it?"

That's one of my favorites too.

I say two from Charlie and the Chocolate Factory a lot:

• "...You're really weird!"
• "And you're just happy to be here, arentcha?"

That's all I can think of. :/

I think most of what I say can be sourced in the Simpsons, but a bunch of my favorite random quotes are from the Princess Bride....

"INCONCEIVABLE!"
"You keep using that word. I do not think it means what you think it means."

also:

"Hello. My name is Inigo Montoya. You killed my father. Prepare to die."

"FOR-EV-ER."
- The Sandlot.

I can't believe other people quote A Christmas Story on a regular basis, too.

"Ohhhhhhh fffffffuuuuuudddggggeeee."
"Hey, kid!" (from when Randy fell down in the snow)
My dad is fond of saying, "Sons of bitches! Bumpuses!"

Oh, man, I know there are more. I think most of my dialog contains movie quotes and references.