(colloquial) 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.)

(transitive) To assemble the parts of a mechanism, especially by connecting wires. / (transitive) To connect to something like a power supply or a signal source.

simple past tense and past participle of hook up

Third-person singular simple present indicative form of hook up

present participle of hook up

Alternative form of hookup