An incredibly ambiguous phrase that drives me absolutely insane when people use it.

any form of getting some type of action, such as, making out, feeling things, or oral pleasure or sex between 2 people. "A hook up" is whats referred to as doing those things when your not going out with anyone

hook up/hooked up

1. To engage in romantic/sexual activity with another at a party/gathering.

Usually, one or both partners are under the influence of alcohol, or another judgement imparing drug. "Hooking up" usually involves little or no emotional attachment.

2. An exchange. To give/recieve/share an asset, or something of value, usually something that is tangible.

"Hooking up" is most commonly used in reference to the sale/exchange of illict drugs.

In Australia hooking up just mean kissing (with tongue. So basically you go to a party, mingle with some people and then u spot a cute guy/girl and start talking and flirting or watever and then you guys kiss. Thats hooking up. Usually isn't followed by anything after that night.

Getting together to get it on. A term used to refer to cheap, meaningless, no-strings-attached sex. Hooking up does not consider any possible consequences between the parties involved or their unsuspecting significant others.

Hooking up has come to define sexual relationships for most of today's teens and young women. It can mean anything from kissing and touching to oral sex or intercourse. Vagueness is its hallmark. "A girl can say, 'I hooked up with so-and-so,' and no one knows what she did. It protects you and makes you a player at the same time," -Aparicio (Sophomore at Boston University)

<http://www.boston.com/yourlife/relationships/articles/2007/02/13/hooking_up_is_the_rage_but_is_it_healthy/>.

(verb)The act of making out or other sexual activity while not in the presence of others. The persons "hooking up" had to go somewhere else.