loon Synonyms

diver lunatic addle-head birdbrain psycho simpleton goon loonie nutcase pinhead dumbbell kook bonehead knucklehead oaf boob plowboy dope rascallion addlehead wittol twit madwoman fruitcake mental case chowderhead dingbat halfwit numbskull lamebrain nutbag schizo sociopathic bulb-out wacko psychopath sociopath dork nitwit dimwit crackpot nut case screwball twerp aliene divertive dodo dolt donkey dummy