(n.) A short, thick, heavy piece of wood.

asshole babe bean boob booby butt champ chaw chew chomp cinch conk credulous person crunch cull ding-a-ling dingbat dingdong dolt dolthead dome dupe easy mark easy pickings fall guy fathead fish fool galoot gobe-mouches goof greener greenhorn greeny gudgeon gull head headpiece innocent jerk jerk-off klutz leadpipe cinch mark masticate monkey munch mutt noddle noggin noodle oaf patsy pigeon plaything poll prize sap pushover ruminate sap saphead sawney schlemiel scrunch sitting duck stooge sucker toy trusting soul victim