Shit-for-brains

//ˈʃɪt fɚ ˌbɹeɪnz// adj, noun, slang

adj, noun, slang ·Common ·High school level

Definitions

Noun
  1. 1
    An extremely stupid person. colloquial, derogatory, vulgar

    "That new assistant of yours is a real shit-for-brains."

Adjective
  1. 1
    Extremely stupid. colloquial, derogatory, not-comparable, vulgar

    "That shit-for-brains assistant of mine lost my files again."

Synonyms

All synonyms
harebrainedaddlebrainedaddlepatedairheadedass-brainedbaby-brained

Example

More examples

"That shit-for-brains assistant of mine lost my files again."

Etymology

Canadian, from the 1950s.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.