<p><strong>Noun</strong></p><ul><li>an act or instance of hooking up.</li><li>an assembly and connection of parts, components, or apparatus into a circuit, network, machine, or system.</li><li>the circuit, network, machine, or system so formed.</li><li>a device or connection, as a plug, hose, or pipe, for conveying electricity, a water supply, etc., from a source to a user: Some campsites have electrical hookups for trailers.</li><li>Informal: an association, alliance, or cooperative effort: A closer hookup of Caribbean nations would be good for international trade.</li><li>Informal: a sexual encounter without a long-term commitment: I’m over these college boys who are only interested in meaningless hookups.</li><li>a person with whom one has such an encounter: I ran into an old hookup at the club, but I pretended not to remember her.</li><li>Slang: a supplier of illicit goods, usually drugs: My hookup is getting out of the game—can you introduce me to your guy?</li><li>access to illegal drugs: When you are trying to score on the street it is easy to see who has the hookup.</li></ul>