Gastro

noun, slang

noun, slang ·2 syllables ·Uncommon ·College level

Definitions

Noun
  1. 1
    Gastroenteritis Australia, UK, colloquial, uncountable

    "He had a bad case of gastro, but came right as rain the next day."

Synonyms

All synonyms
gastroenteritisgastroenteritis

Example

More examples

"He had a bad case of gastro, but came right as rain the next day."

Etymology

From gastroenteritis by shortening.

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