Nouns

(n)pest, blighter, cuss, pesterer, gadflya persistently annoying person
(n)chap, fellow, feller, fella, lad, gent, blighter, cuss, blokea boy or man“that chap is your host”, “there's a fellow at the door”, “he's a likable cuss”, “he's a good bloke”
(n)curse, curse word, expletive, oath, swearing, swearword, cussprofane or obscene expression usually of surprise or anger“expletives were deleted”

Verbs

(v)curse, cuss, blaspheme, swear, imprecateutter obscenities or profanities“The drunken men were cursing loudly in the street”