I had to watch it about three times before I really liked it.
Probably my favorite dialog:
Donny: Are these the Nazis, Walter?
Walter Sobchak: No, Donny, these men are nihilists, there's nothing to be afraid of.
Nihilist: Ve don't care. Ve still vant ze money, Lebowski, or ve *expletive deleted*ck you up.
Walter Sobchak: *expletive deleted*ck you. *expletive deleted*ck the three of you.
The Dude: Hey, cool it Walter.
Walter Sobchak: No, without a hostage, there is no ransom. That's what ransom is. Those are the *expletive deleted*ing rules.
Nihilist #2: His girlfriend gave up her toe!
Nihilist #3: She though we'd be getting million dollars!
Nihilist #2: Iss not fair!
Walter Sobchak: Fair! WHO'S THE *expletive deleted*ing NIHILIST HERE! WHAT ARE YOU, A BUNCH OF *expletive deleted*ing CRYBABIES?
The Dude: Hey, cool it Walter. Look, pal, there never was any money. The big Lebowski gave me an empty briefcase, so take it up with him, man.
Walter Sobchak: And, I would like my undies back.
[Stunned, the Germans confer amongst themselves again]
Donny: Are they gonna hurt us, Walter?
Walter Sobchak: No, Donny. These men are cowards.
Nihilist: Okay. So we take ze money you haf on you, und ve calls it eefen.
Walter Sobchak: *expletive deleted*ck you.