Isabummer is the name given to Isabella Swan from the Twilight series referring to the way she whines and mopes. It is a play on words.
Friend 1: I didn't want presents for my birthday! I didn't want a party!
Friend 2: Keep whining about how much you hate people giving you presents and you'll turn into Isabummer!
Friend 2: Keep whining about how much you hate people giving you presents and you'll turn into Isabummer!
by BTell February 20, 2011
First seen on the t.v. show Glee, the Warblers are professional life-ruiners and perfect human beings.
by BTell June 15, 2011