cuss /kʌs/noun 4verb 1forms 3phrases 1 noun4 •(US, informal) A curse. •(US, informal) A curse word. •(US, informal) Fellow, person.He's an abrupt-sounding cuss, but good-hearted too. •(informal, old-fashioned) A fellow, person."Proud young cuss, aren't you?" "Apparently - I don't know." "Or is it you are just pig-headed?" — 1936 verb1 •(US, informal) To use cursing, to use bad language, to speak profanely.I went over the fence like a shot, and ran like one o'clock for the trap, cussing and swearing as I went. — 1899 formscussed · cussing · cusses Phrases with cuss cuss outTo berate (someone or something) using profane language; to swear at (someone or something), especially at length.