batshit

• bat shit
• bat-shit (adjective only)

Presumably from batty (“crazy”), itself from earlier have bats in one's belfry, from tendency of bats to fly around erratically. Possibly influenced by or derived from apeshit, particularly in phrase go apeshit.

• IPA^(key): /ˈbæt.ʃɪt/

• Audio (AU)

  (file)

• Hyphenation: bat‧shit

batshit (uncountable)

1. (vulgar, literally) fecal matter produced by bats
2. (slang, vulgar) nonsense, horseshit; especially when said by or attributed to someone irrational.
3. (slang, vulgar) extreme irrationality or unreasonableness, insanity, craziness.

• guano

batshit (comparative more batshit, superlative most batshit)

1. (slang, vulgar) extremely irrational or unreasonable, insane, crazy.

   Don't take any courses from that professor. She's completely batshit.

   • 1995, Nicholas Pileggi, Martin Scorsese, Casino:

     Nicky Santoro: And what the fuck are you doing on TV anyhow? You know I get calls from back home every fuckin day, they think you went batshit!

   • 2002, David Simon, The Wire, (ref):

     Those subpoenas went out today!

     The front office is gonna go batshit!

• batcrap
• batpoop
• See also Thesaurus:insane.

• apeshit
• bat
• batty
• go batshit
• shit

batshit (not comparable)

1. (slang) Used as an intensifier, particularly for insane or synonyms.

   When we heard about it he went batshit nuts.

• battish