Meaning & use

bat-shit crazy

adjective, adverb·Advancedvulgarslanginformal

Last updated

UK/ˌbætʃɪt ˈkreɪzi/
US/ˌbætʃɪt ˈkreɪzi/
Usage warning: this word is vulgar. It can hurt or insult people. Learn to recognise it, but avoid using it about anyone.

Meanings

  1. adjectivenot comparablevulgarslanginformal

    completely crazy or extremely strange, used for emphasis in very informal speech.

    Grammar: Used after a linking verb or before a noun, like a normal adjective: He went bat-shit crazy. A bat-shit crazy idea.

    Patterns

    • go bat-shit crazy
    • be bat-shit crazy
    • a bat-shit crazy idea

    When the team lost the final, my uncle went bat-shit crazy and threw his hat at the TV.

    She had this bat-shit crazy plan to sell everything and live on a boat.

    Everyone thought I was bat-shit crazy for running a marathon in the rain.

  2. adverbvulgarslanginformal

    used before an adjective to mean extremely, in very informal speech.

    Grammar: Used like very or really before an adjective: bat-shit crazy, bat-shit insane.

    Patterns

    • bat-shit crazy
    • bat-shit insane

    That movie was bat-shit crazy weird, but I loved it.

    He gets bat-shit angry when someone touches his tools.

Common combinations

go bat-shit crazy
My dad went bat-shit crazy when he saw the phone bill.
bat-shit crazy idea
It was a bat-shit crazy idea, but it actually worked.
drive someone bat-shit crazy
That dripping tap is driving me bat-shit crazy.
bat-shit insane
The traffic in that city is bat-shit insane.

Synonyms and how they differ

insane
A more neutral word for mentally ill or shocking; it can be serious, while bat-shit crazy is always casual and vulgar.
nuts
Informal and less vulgar; it can mean crazy or very enthusiastic, while bat-shit crazy only means crazy.
deranged
Formal and medical-sounding; use it for serious mental illness, not for a wild party idea.

Opposites

Commonly confused: bat-shit crazy or batshit?

bat-shit crazy vs batshit

The same word written as one word, without a hyphen. Both are informal and vulgar.

Practice

Choose the sentence that uses bat-shit crazy correctly.

Make it your own

Write a sentence using “bat-shit crazy”, then check it and compare it with the examples above.

Your sentence stays on this page and is not sent anywhere.

Explore more words