look up any word, like dirty sanchez:
1.Bodily waste of varying color, viscosity, shape, odor and texture. Usually exits the body through your anal cavity. The size of your cah cah depends on what you ate and the last time you did cah cah.

2. Foul mouthed person.
1.Joe did cahcah in his pants.
2. Joe has a cah cah mouth.
by RangerDanger69 May 25, 2008
poop, shit, black bread, icky from your bottom.
It was a fucking nightmare, cah cah as far as the eye could see.
by Trevorb May 25, 2008