Flatty

noun, slang

noun, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    A flatfish. regional, slang
  2. 2
    A flathead (fish). Australia, slang
  3. 3
    A flat tire/tyre. slang
  4. 4
    A policeman. US, archaic, slang
  5. 5
    A flathead V8 engine. slang
Show 2 more definitions
  1. 6
    A hot rod fitted with a flathead V8 engine. slang
  2. 7
    Alternative form of flattie (“operator of crooking gambling operation”). alt-of, alternative, slang

Synonyms

All synonyms
cobblercopcopperfedflatfishjack

Etymology

From flat + -y. (policeman): From flatfoot.

Related phrases

flatty-kenhot rod

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