| 2. | nutty - informal or slang terms for mentally irregular; "it used to drive my husband balmy"bats, batty, bonkers, buggy, crackers, daft, dotty, haywire, kookie, kooky, loco, loony, loopy, nuts, round the bend, around the bend, balmy, barmy, wacky, whacky, fruity, cracked insane - afflicted with or characteristic of mental derangement; "was declared insane"; "insane laughter" | |