[Salambo]

Yay! "The Greater Good" is one of my favourites. I try to use it at inappropriate times.

Also from Hot Fuzz:

"He's fuck-ugly." - used for almost anyone.

"You cook any fools?" - when someone starts to tell me about their day.

"That's just grossly inappropriate." - used for everything.

"I'm not made of eyes!" - when asked if I saw something, or how could I miss something.

"What a gaylord!" (must be said with the same accent and inflection and utter schoolboy glee) - for nearly anything. Or anyone.

Snatch also has some great ones that are fairly easy to slip into everyday conversation, if timed right:

"No thanks, Turkish, I'm sweet enough." - all purpose, but usually if I'm offered something sweet.

"Save yer breath fer coolin' yer porridge." - when I wave someone off.

"Sneaky fuckin' Russian." - anyone, anytime.

"Zee Germans?" - when confused.

I don't remember where I got this, but I feel like it must have been Pulp Fiction. Usually when asked why my husband wants to be a cop, I respond:

"So he can chill them crackers out."

Futurama:

Whenever anyone other than my husband says "[Salambo], I love you!" I always respond, automatically: "Shut up, baby, I know it!"

"No fair! You changed the outcome by measuring it!" - whenever I disagreed with my boss about something.

"Do you have an extra Goto 10 line?" - usually thought to myself, unless I think they'll get it. Not often.

ETA: Damn, forgot The Office:

"I had an epiphery." - all the time. That word is ruined for me.

"I hate so much about the things that you choose to be." - when I'm mad at the world. Or sometimes someone specific.

...no, I can't get into this. There are too many Michael-isms to even begin. And Dwight-isms. Hell, Packer-isms.