A person with glasses and a moustache.
oh.. did i say person.. i ment FUCK FACE!!!!!
They are total douche bag nerds and if you see one don't be afraid to throw your used band aid at them (Or Shit)
The other day my mom looked a glustacher in the eye.
My mother's dead.
The result of an artistic ejacultion whereby the recipient is given a semen mustache. The range and style of gustache is limited only by the precision, imagination, and capacity of the giver and the patience of the receiver.
"I wanted to give her the full on glazed donut effect, but it was my fifth load of the day so I had to settle for giving her a gushtache."
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).