happy as a pig in shit

and shit

Used after one or more listed objects, attributes or processes to indicate additional others.

beat the shit out of

To beat (someone) severely.

couldn't stop a pig in a passage

To be bow-legged.

does the Pope shit in the woods

Obviously! Rhetorical question in response to a question where the answer is an emphatic yes.

don't shit where you eat

One should not cause trouble in places, groups, or situations that one holds as important or necessary to one's happiness or well-being.

dumb shit

Alternative spelling of dumbshit.

eat shit

An expression of discontent or aggravation to another party.

everything one touches turns to shit

Everything someone uses or does fails or becomes worse.