Basically anything Samuel L Jackson says.
"I'm a mushroom cloud laying mothaf***a, mothaf***a"
"I am the foot f***in masta"
"God came down from heaven and stopped these motha f***in bullets"
"you know cops tend to notice s*** like you're drivin a car drenched in f***in blood"
Some of his best work is in dialogue though, he's Jules.
Jules: Hey f*** nigga what the f*** did you just do to his towel, man?
Vince: I was dryin my hands
Jules: Well you're supposed to wash em first
Vince: Well you watched me wash em
Jules: I saw you get em wet
Vince: I was washin em, this s***'s hard to get off; maybe if I had lather I could do a better job
Jules: I used the same f***in soap you did and when I finished the towel didn't look like no god damn maxipad
Ah I love that movie