One particular word (a name, actually) which is, to the British, a bit naughty, can be used as a verb, though an ex-girlfriend of mine from 35 years ago also used it as a noun... get ready now...here it is:
RogerYep. Don't know if it's used much anymore, but I believe "Rogering" was pretty much much synonymous with "shagging." For a man, to "Roger" someone (I'm not sure if it should be capitalized) was to have sex with that (female) person.
But my ex, who could do a near-flawless British accent (Drama major in college), also used the word to refer to the male member in much the same way that people in some areas of the US refer to it as "Johnson."
Strange But True: I have a friend in England named Roger Johnson.

Signor V.