Meaning & use
bat-shit crazy
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Meanings
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.
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.
Choose one answer.
Bat-shit crazy is an adjective meaning extremely crazy or strange, so it fits after 'sounded' in option B. Option A uses 'about' as if it meant enthusiastic, which is wrong; option C uses it as an adverb of manner, which is not its use; option D uses it as a verb, which it is not.
Make it your own
Write a sentence using “bat-shit crazy”, then check it and compare it with the examples above.