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.
A hacker enters the gunz room, __VT__ says me gu may!
מאת BertyR 16 באפריל, 2007
Can you define these popular missing words?