List of weirdo synonyms and weirdo related words.
aliene, bedlamite, borderline case, character, crackbrain, crackpot, crank, dement, demoniac, eccentric, energumen, erratic, fanatic, flake, fou, freak, idiot, kook, loon, loony, lunatic, madman, maniac, meshuggenah, noncompos, nonconformist, nut, oddball, phrenetic, raving lunatic, recluse, screwball, strange duck