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How to sign: informal or slang terms for mentally irregular "it used to drive my husband balmy";
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Similiar / Same: bats, around the bend, round the bend, nuts, loopy, loony, loco, kookie, kooky, haywire, dotty, daft, crackers, buggy, bonkers, batty, fruity, nutty, barmy, wacky, whacky, cracked
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