Shit - The bird shit on the statue.
 
Piss - I have to piss like a race horse.

Fuck - Fuck you.

Cunt - She has a gorgeous cunt.

Cocksucker - Go to hell, you cocksucker.

Motherfucker - You are a motherfucker.

Tits - Hey, nice tits.

Later, Carlin referred to three additional "auxiliary" words:

Fart - I farted

Turd - Who dropped a turd in the urinal?

Twat - Shave that hairy twat.