batty

形容词 batty:

1. informal or slang terms for mentally irregular
   同义词：balmy, barmy, bats, bonkers, buggy, cracked, crackers, daft, dotty, fruity, haywire, kooky, kookie, loco, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky

bat.ty

adj.（形容词）
bat.ti.er,bat.ti.est 【俚语】
Crazy; insane.
神经错乱的；疯疯癫癫的

来源：
From bats in the belfry
源自 bats in the belfry

【引伸】
bat.tiness
n.（名词）