20 possible answers to
Answers with 3 characters: ASS OAF Answers with 4 characters: BOOB BOZO CLOD DODO DOLT DOPE FOOL GOON SIMP Answers with 5 characters: BOOBY IDIOT Answers with 6 characters: NITWIT Answers with 7 characters: AIRHEAD DIMBULB HALFWIT PINHEAD Answers with 8 characters: BONEHEAD Answers with 9 characters: BLOCKHEAD