Again, this is more bingo lingo for you. 1TG means One to Go, and 2TG means Two to Go. In short, if you see this, this means that you have one or two numbers left to call until you win. Some 90-ball bitcoin bingo games offer consolation prizes if you finish needing just one or two numbers, so if you see 1TG or 2TG prizes up for grabs in a game, you’re guaranteed to pocket some sort of prize if you “almost” win.