An Australian coined word meaning a Boring Trashbag.
Someone who parties excessively but bores everyone else around them, or stays out partying despite actually being bored.
As apposed to the Trashbag who is the life of the party until they fall asleep in the gutter; its better if the Trashbeige falls asleep in the gutter at the beginning of the party.
Can also mean someone who isn't really trying hard enough - hanging about being a bit trashy but not convincing anyone.
You're such a Trashbeige - why don't you go home if you're not enjoying it?