zipper effect

The chain reaction caused during the last 10-15 seconds of class when someone loudly zips their backpack, this in turn causes everyone around him to look up at the clock and immediately start packing.

Guy 1: Class was taking forever today, I had to resort to the zipper effect.

Guy 2: Works every time.

27👍 6👎

perching

The act of placing your bare junk (usually male) onto the person sitting directly in front of you during class in the fashion a bird would perch onto a tree branch.

Guy 1: Yo dude, today I just lost it and started perching up on this d-bag who had been annoying me all semester.

Guy 2: Gross man.

11👍 14👎

DNAss

The act of identifying a girl by the appearance of her ass alone.

Guy 1: Was that the girl from last night?

Guy 2: DNAss isn't showing a match. Wasn't her.

Guy 1: Ok, thanks.