noun:
someone who is unbelievably perfect; ruins your image on how most people are; makes you believe that most people are unworthy because there is someone like him/her around
A woman with caked on make-up, usually found frequenting clubs and bars. When you take them home to bang them, you wake up in the morning with a ruined pillow-case from their massive amounts of make-up being rubbed off.
So after I banged that Pillow Case Ruiner last night I had to go out and buy some new pillow cases! Shit was nasty!
An addictive side affect from exhausting oneself in a footrace. Usually runnershigh varies differently depending on the person but it his been compared to an orgasim or being on drugs.