lol I loved Rowan in his black leathers and beard. That penultimate scene in series 2 "Life without you is like a blunt pencil....pointless" brilliant.
Some that tend to crop up in my circle are "What is the matter with you Darling?" and "There's nothing cushy about the Women's Royal Auxillary Balloon Corps"....

Oh and my cousins and I sometimes call each other "Noble Cuz"


oh yeah and "hey nonny nonny, my lord!"


Smeghead is one that crops up....usually that ends up as "Smeee..eeeg H.eeee...eead"

oh I have one "Did you spit in this?" -- Chet (Bill Paxton) in Weird Science

The sort of thing one dredges up from neo-Latin sites from Roman recreationists: "FABRICATE DIEM, PVNC!"

With all due respect, sir, you're beginning to bore the hell out of me. - "Heartbreak Ridge"

I use "Pineapple, goatcheese pizza!?!?" (Bruce Williis in Hudson Hawk) in response to a lot of things, not necessarily having to do with food.

"Oh, it gets better!" (Rip Torn as Zed in Men in Black) is my response in place of a "wait, there's more."

"But I was going to Tosche Station to pick up some power converters." (whined by Luke in Star Wars) is my response to things I'd rather not do.

"We're in a tight spot!"
O Brother Where Art Thou

"A little too much fucking perspective, if you ask me."
This Is Spinal Tap

"She's like a cockroach what turned into a butterfly!" ("what" is not a typo.)
Junior in Pocketful of Miracles.

I used to use this one, but no one else got it and I got over explaining it.

Spinal Tap: forgot about that, there must be a million in there. ie whenever anybody describes something as "black" it must be "none more black". Dealing with amps, "This one goes to eleven". Etc.

Actually the best are when a line appears totally unexpectedly. A friend and I were building an Ikea shelf when I dropped one of the pegs that holds a shelf up. It rolled down to my friend, who handed it back to me and said "Steely Dan". I said "What?" He said, and 20 years later it is still just as memorable,

"Peg, it will come back to you."

Indiana Jones and the Penultimate Crusade:

"He chose poorly."

Ghost Busters

"Tell him about the twinkie."
"Okay, so, she's a dog."
"Yes. It's true. This man has no dick."
"Dogs and cats, living together."

My Cousin Vinny

"Identical" (Has to be said properly)
"Does that thing come turbo-charged?"
"Are you sure about that five minutes?"

The Princess Bride

"I don't think this word means what he thinks it means." (Also has to be said properly)

Princess Bride has a million of 'em.
"As you wiiissshhh..."
"Anybody want a peanut?"
"You kill my father, prepare to die."
etc.

So does Joe vs the Volcano.

Have fun storming the castle.

We use a couple from South Park:

"Oh, rainbows..."
"It's my ______, I'll do what I want!"

Planet...tarium

Doesn't come up much in conversation, but we both say it

Oh it does come up at school. I use it all the time. the kids don't get it, though. :(