Urban Dictionary defines hooking up as 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 you’re not going out with anyone.
In today’s society, many people do not have time for a relationship, or for some reason have shied away from one. Having a FWB to hook up with to quench our sexual thirsts is pretty much the norm these days. Basically, hooking up is engaging in intimate sexual acts with another person. Hooking up does not imply monogamy or that you’re in relationship or are even dating this person. This can be a one-time occurrence or a type of ongoing sexual relationship that you have with him or her and/or with multiple people.
Hooking up can have many meanings. In my mind, most people typically over-think it. It can be used in many ways. You don’t want to give derails, you say “we hooked up”, you don’t have to give a play by play. You can discuss your sexual encounters without going into detail by keeping things vague and open-ended. Using the term hook up can also alleviate the stigma or judgement that many people may face when they engage in intimate acts with others, especially when having or not having intercourse.