can be alot like the word fuck. can be used as a noun, adjective, or verb. Other variations include Gusty, Gusto, and Gussy. Common name substitutions include Gus, Gustavo, and Gustina.
Tim is such a freakin gus, it's ridiculous.
What's up Gus?
Tim is acting gusty.
That shirt is totally Gus.
Tim completely gussed when he was macking that cougar.
This party is getting gusty.
A 'gus' can also be used to describe a person with insufficient wiping skills, resulting in him or her smelling strongly of feces - and with occasional smears of dung riding up the butt crack and lower back region.
That chick sitting ahead of me has insane swamp ass. There is a pool of booty juice left on the seat and she smells like fresh shit. What a gus! There is a trail of crap leading up her lower back.