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adjective
Informal or slang terms for mentally irregular.
synonyms: around the bend, balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, daft, dotty, fruity, haywire, kooky, loco, loony, loopy, nuts, nutty, round the bend, wacky, whacky ... show more.
is similar to: insane.
derivation: kook, odd fellow, odd fish, odd man out, queer bird, queer duck | addle-head, addlehead, birdbrain, loon | craziness, daftness, flakiness.
Polish: odjechany
Find more on kookie elsewhere: etymology - rhymes - Wikipedia.
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