abnormal alien aliene anomalous balmy bananas barmy bats batty beany bedlamite bonkers borderline case bowl buggy bughouse bugs case cast change of pace change-up character chuck chunk crackbrain crackers crackpot crank crankish cranky crotchety cuckoo curve daffy dement demoniac deviant deviative different ding-a-ling dippy divergent dotty downcurve eccentric energumen erratic exceptional fanatic fastball fey flake flaky fling flip flipped forward pass fou freak freaked-out freakish fruitcakey fruity funny gaga goofy harebrain haywire heave hermit hobo hurl idiocratic idiosyncratic idiot incurve irregular just plain nuts kinky knuckleball kook kooky lateral lateral pass lob lone wolf loner loon loony loopy lunatic madman maggoty maniac maverick meshuggenah natural noncompos nonconformist nut nuts nutty odd odd fellow oddball oddity off the hinges off the track off the wall original outcurve outsider pariah pass peculiar peg phrenetic pitch potty put queer queer duck queer fish queer specimen quirky rara avis raving lunatic recluse round the bend screwballs screwy serve service shot-put shy singular sinker slaphappy slider sling solitary spitball spitter strange strange duck throw toss tramp twisted type unconventional unnatural upcurve wacky weirdo whimsical zealot