Definition of "batshit"

batshit

/ˈbæt.ʃɪt/

noun
uncountable
1. (vulgar, literally) Fecal matter produced by bats.
2. (slang, vulgar) Extreme irrationality or unreasonableness, insanity, craziness.
  Quotations
  Yvette Cooper, the shadow home secretary, suggested Cleverly had previously privately referred to the Rwanda plan as “batshit”, a jibe not explicitly denied by Cleverly.
  2023 November 15, Rajeev Syal, Peter Walker, Rowena Mason, Ben Quinn, quoting James Cleverly, “Rishi Sunak to bring in emergency law after supreme court’s Rwanda ruling”, in The Guardian‎
adjective
comparative more batshit, superlative most batshit
1. (slang, vulgar) Extremely irrational or unreasonable, insane, crazy.
  Quotations
  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!
  1995, Nicholas Pileggi, Martin Scorsese, Casino, spoken by Nicky Santoro (Joe Pesci)
  Those subpoenas went out today! The front office is gonna go batshit!
  2002, David Simon, The Wire‎
adverb
not comparable
1. (slang) Used as an intensifier, particularly for insane or synonyms.