From Longman Dictionary of Contemporary Englishhook up with somebody/something phrasal verb especially American English informal1 a) to start having a sexual relationship with someone b) MEETto meet someone and become friendly with them SYN meet up with Did you ever hook up with Maisy while you were there? c) TOGETHERto agree to work together with another organization for a particular purpose2 hook somebody up with something to help someone get something that they need or want SYN fix up with Do you think you can hook me up with some tickets for tonight? → hook→ See Verb table
Examples from the Corpus
hook up with • Bech murders his critics, wins the Nobel Prize and hooks up with a woman a third his age.• Or coming back to your motel room to find your co-worker has hooked up with the local bartender. 