'bats' definitions:

Definition of 'bats'

From: WordNet
adjective
Informal or slang terms for mentally irregular; "it used to drive my husband balmy" [syn: balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, daft, dotty, fruity, haywire, kooky, kookie, loco, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky]

Definition of 'bats'

From: GCIDE
  • bats \bats\ (b[a^]ts), a. Crazy; insane; loony; demented; batty. [PJC]

Synonyms of 'bats'

From: Moby Thesaurus