Colloquial Variant guide

batshit

adj · adv · noun · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˈbæt.ʃɪt/
  • Australia: Recorded audio is listed in the source snapshot.
  • rhymes with -æt.ʃɪt

1

adj

Meaning 1

Extremely irrational or unreasonable, insane, crazy.

Definition source: English Wiktionary via Wiktextract

Usage: slang, vulgar

Examples

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

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adv

Meaning 2

Used as an intensifier, particularly for insane or synonyms.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable, slang

Examples

  • When we heard about it he went batshit nuts.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Fecal matter produced by bats.

Definition source: English Wiktionary via Wiktextract

Usage: literally, uncountable, vulgar

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: guano

Antonyms: none provided

4

noun

Meaning 4

Extreme irrationality or unreasonableness, insanity, craziness.

Definition source: English Wiktionary via Wiktextract

Usage: slang, uncountable, vulgar

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

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.

Across languages

Translations

13 source translations are retained for this English entry.

  • Dutch: knotsgek — insane
  • Finnish: sekaisin kuin seinäkello — insane
  • French: cintré — insane
  • French: cinglé — insane
  • French: zoné — insane
  • French: gelé — insane
  • French: pété par la gelée — insane
  • German: durchgeknallt — insane
  • German: verrückt — insane
  • Polish: szurnięty — insane
  • Russian: сумасше́дший ёбнутый (sumasšédšij) — insane
  • Russian: ебану́тый (jebanútyj) — insane
  • Russian: пиздану́тый (pizdanútyj) — insane