noun, slang ·Moderate ·College level

Definitions

Noun

1. 1
   One who pumps something.
2. 2
   A fire engine with a water tank and pump.
3. 3
   A steroid or other drug taken to improve blood flow and increase muscular size. slang

Synonyms

All synonyms

acidcarbon tetrachlorideextinguisherfire extinguisherfire hydrantfireplug

Etymology

From pump + -er.

Related phrases

fist-pumpergym candy

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