Simply means "your mum is". It is an vietnamese sound translated to english language. Originally used by the members of the NA gunz clan HondaR (BertyR and __VT__). Often used when they are disapointed.
by BertyR April 16, 2007
When one needs an extra little time with his lover, and is on an extremely tight leash, he will call his father and shout Gus-sahh! Once his father hears this plea, he will submit to his request.
Bishoy: "ring, ring," (bishoy calling dad)
Father: "hello?"
bishoy: "GUS-SAHH"!!!
Father: "ofcourse I understand"
Father: "hello?"
bishoy: "GUS-SAHH"!!!
Father: "ofcourse I understand"
by EZ B February 17, 2009
Yankin' Yo Gus is also known as masturbating.
by DasWonton February 21, 2019
by 69izzy69 December 22, 2009
by Jimbob Mccoy October 13, 2004
by Crazed italian May 31, 2005