Here's a thread for lines that you liked from a movie or TV show. You can put where it's from too. I'll start.
Seinfeld
"It's a heavy metal group. Metalli-something."
"Ca."
"Huh?"
"Wha?"
"Ca."
"Ah."
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Veep
"This is fucking like being operated on by a chimp with a hard-on and a hacksaw."
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SLC Punk
"The problem with somebody giving you [BEEP] about being gay... it's not that they're wrong about you, it's that they're giving you shit."