twonk /twɒŋk/noun 2verb 1forms 3 noun2 •(UK, slang) A stupid person.You dozy little twonk, Rodney. You bang again on the roof of my van like that and it won't be Frankie Goes to Hollywood, it'll be Rodney goes to hospital. — 1985 •(UK, slang) Nonsense; rubbish.What twonk you are talking! verb1 •(UK, slang) To hit or slap. formstwonked · twonking · twonks