Slangonym

Based on the slangonym snow, referring to heroin and cocaine. In use since early 1920's.

Source: wiktionary

... slangonym for female genitalia. Often used to mean "clown around", "cut-up" was also a technique used by Naked Lunch author William Burroughs of rearranging the words of an existing text to make a new work.

Source: wiktionary

That other vaginal slangonym, twat, though, expresses no more than resigned despair or disdain.

Source: wiktionary

camera obscura * a darkly comic slangonym for the anus

Source: wiktionary