The sexual act of having a 69 while on the toilet.

Frontal plumb, def; The frontal women version of a plumber’s crack.

A plumbing company

Verb- The act of unclogging your girlfriends/ boyfriends asshole when they are constipated. To do this you must place your mouth firmly against their bare asshole and suck until you fell light headed, at this point you must go back in and finish the job by inhaling all of their feces.

A thumb plumb is when there is a lump of shit left on the thumb after thumbing an arse.

To take a massive dump at a friends house, testing how well their porcelain can handle it.