noun, slang ·Uncommon ·Advanced level

Definitions

Noun

1. 1
   A pair of miniature valves right next to each other on a wall, connecting through the wall to the household plumbing, used to provide water to a washing machine. (They are usually red and blue, with the red one delivering hot water and the blue one delivering cold water.) colloquial, plural, plural-only

Example

More examples

"Sami's daughter isn't into hook-ups."

Etymology

They are said to hook up with a washing machine.

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