Definition of Wacko
Noun: wacko (wackos,wackoes) wa-kow
- A person who is regarded as eccentric or mad
- nutter [Brit], whacko, nutjob, nutcake [US], wackjob [N. Amer], mentalist [Brit], nutbar [N. Amer], basket case, whackjob [N. Amer]
- Informal or slang term meaning insane, strange, eccentric or stupid
- balmy [archaic], barmy, bats, batty, bonkers, buggy [N. Amer], cracked, crackers, daft, dotty, fruity, haywire, kooky, kookie, loco, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky, daffy, dippy, nutsy [N. Amer], potty [Brit], daft as a brush [Brit], round the twist [Brit], cuckoo
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