Ultimate Sex Gawd - Someone who has really got that babe on each knee, a king of pimp-icity.
Dude 1 : Woah, that guy like totally got razzled up his fantasmacazzle the other day with that blond chick!
Dude 2 : Yeah, he sure is a USG.
Dude 17 : mmm... wine
The recently popular abbreviation for the word "usual."
Other abbreviations such as "yooj" have also been accepted, but it is felt the abbreviation should look more like the original word, for less confusion.