What is Fgau?
1.
For God And Ulster
it is an old Ulster(irish) phrase, like americans saying "God Bless America".
Ireland is great, with the best culture, FGAU!!
(??)
it is not a often used term, so there isnt much of an example, but this is a way of how it can be used
See 
Random Words:
1. 
a homosexual hispanic male
yo Jose's cousin is a real fucking jalapeno stuffer..