Hooking up means meeting people for the purpose of having sex, generally not having any sort of relationship afterwards. Meeting someone new, or someone you already know and proceeding to having sexual intercourse withoutany intention of keeping a relationship type commitment. Hooking up is usually a one-time thing.

What does hooked up with a guy mean?

In the most basic sense, hooking up with someone means that youre sexually intimate with him or her, yet this intimacy can range from kissing all the way to intercourse.