1. A puke flake is when your top of a balcony and you puke off it on top a group of people conversing at a get together or party.

2. A person who always blows off friends or events that they are invited to. And there a fuckin a low life puke. You didnt want them there in the first place but they invite themselves anyways and still dont show up.

Short for ultimate bias. Typically used by fangirls and fanboys to describe their favourite celebrity amongst the many that they are fans of.