#1 kooky s. [balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, daft, dotty, fruity, haywire, kookie, loco, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky] informal or slang terms for mentally irregular; "it used to drive my husband balmy". wn
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