The first massive gathering of college freshmen after about half a semester at college. Sometimes occurs on Columbus Day weekend, more often Thanksgiving weekend. Named because everyone attending is wearing a hoodie representing their respective college/university.
Pastimes include embelishing college experiences, reminesing about high school days, and hooking up with old high school crushes.
My favorite hoodie party game is "Which chick gained the most weight?"
A party consisting of college freshmen that only wear hoodies to represent thier college. These parties take place early-October. late-November
College freshman 1: Dude let's go to that hoodie party on Saturday!
College freshman 2: Oh yeah dude *BONERD*