whoreson

(noun) the illegitimate offspring of unmarried parents. Synonyms: bastard, by-blow, love child, illegitimate child, illegitimate.

(noun) insulting terms of address for people who are stupid or irritating or ridiculous. Synonyms: asshole, bastard, cocksucker, dickhead, shit, mother fucker, motherfucker, prick, son of a bitch, SOB.