A party or gathering of friends.
Abbrev. of "Extravaganza"
Jimmy's having a strav over at his house tonight.
A slutty girl who acts like a whore and hook up with lots of people. It comes from the phrase stravvy. They're usually gross cumbuckets.
Stop being such a strav.
Guy 1: I just hooked up with Melissa. Guy 2: Dude, Melissa is such a strav. I heard she fucked like 40 guys.