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Crazy: "When word spread that free gas was to be found, the populace, as expected, went bonkers" (Washington Post).
slang chiefly Brit mad; crazy
[C20 (originally in the sense: slightly drunk, tipsy): of unknown origin]
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|Adj.||1.||bonkers - informal or slang terms for mentally irregular; "it used to drive my husband balmy"|
bats, batty, buggy, crackers, daft, dotty, haywire, kookie, kooky, loco, loony, around the bend, balmy, nuts, round the bend, wacky, whacky, nutty, barmy, loopy, fruity, cracked
insane - afflicted with or characteristic of mental derangement; "was declared insane"; "insane laughter"
Informal. Afflicted with or exhibiting irrationality and mental unsoundness:
brainsick, crazy, daft, demented, disordered, distraught, dotty, insane, lunatic, mad, maniac, maniacal, mentally ill, moonstruck, off, touched, unbalanced, unsound, wrong.
Chiefly British: crackers.
Law: non compos mentis.