Definition of VGG
When you read "VGG" in the chat room of an online poker room, it means "very good game". It is a courtesy written after a long session with one or more players. You can also write "vgg" on a final table of a tournament when a player has just been eliminated. If he made it to the final table of a tournament, that's already a great achievement and deserves to be recognized. We will also write "gg" for "good game" simply.
Always be diplomatic at the poker tables
Even if you get knocked out of a tournament on a huge badbeat and are tilted not to go further in the tournament, it's a good idea to say "thank you" or "ty" when a player says "vgg" to you and not an insult out of your hat. When you enter a poker tournament, you are signing the implicit and unspoken contract that you may get badbeaten. Agreeing to play poker means agreeing to the occasional badbeat. So take your defeat philosophically. You might say to yourself that you are happy with yourself because you made the right play.