Definition of hookup
(Entry 1 of 2)
1
: a state of cooperation or alliance
2
: an assemblage (as of circuits) used for a specific purpose (such as radio transmission)
also
: the plan of such an assemblage
3
: an arrangement of mechanical parts
also
: connection
a campsite with electric, water, and sewer hookups
hook up
verb
hooked up; hooking up; hooks up
Definition of hook up (Entry 2 of 2)
: to become associated especially in a working, social, or sexual relationship
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Merriam-Webster unabridged
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Time Traveler for hookup
The first known use of hookup was circa 1879
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