twonk Share definition Flag Derogitary term from the 90s, a cross between ploker and twit.Used on Red Dwarf regularly in between 'SMEG' and SMEGHEAD' - Dan: I just ran over a nun, what should I do?- Kev: Dan you are such a twonk twonk by jessica987 December 19, 2011 Get the twonk mug.