I. intransitive verb
: to attach a horse or other source of draft to a vehicle
hooked up and drove to the meadow
transitive verb
1. : to attach (as a team) to a vehicle
2. : to install in or connect into a suitable environment to function as part of a system
hooked the big parlor heater up each fall
hook the gas up
finished hooking up the new bathroom
3. dialect : marry
arranged to have the parson hook them up
II. intransitive verb
: to become associates especially in a working or social relationship
moved here and hooked up with three musicians from the city — Robert Palmer