bat for the other team

1. To play for or support, either secretly or openly, the opposing side in a given contest or debate. Refers to cricket and baseball terminology, meaning to be a batter for the other team during a game. While the senator continues to publicly denounce the proposed tax law, many feel that he is really batting for the other team. I was hoping to be on the same team as all my friends, but we didn't have enough kids to make two full teams, so I had to bat for the other team. I think Rich is really trying to sabotage the deal. Could he secretly be batting for the other team?

2. euphemism To be attracted to or have sexual relations with people of the same sex; to be homosexual. I asked Simone out on a date, but it turns out that she bats for the other team. I'm not looking forward to telling my parents that I bat for the other team. Jim is dating Elise? Oh, I thought he batted for the other team.