Twice as good as g2g, which means good to go.
Used when pertaining to an exceptionally good deal or an exceptionally good person.
"So, did you get a good deal on that HDTV or what?"
"No. I got a sweet deal. That clearance sale was g4g."
go for gold.
1) a phrase used to encourage/give kudos to a plan or action mentioned by a friend or family member.
2) a phrase used to express mere sarcasm towards a basic idea mentioned by someone else, no matter how mundane it could be..
1) family member: "OMG I JUST WON THE LOTTERY!"
you: "no way!! G4G nana!"
friend: "should i buy the red shoes?"
you: "i say, just g4g =)"
2) friend: "just going to the loo's"
you: "g4g =|"