Margarita-Minivan
A game where one person tries to direct conversation in the direction of issues related to margaritas, and that person's opponent tries to direct conversation in the direction of minivans. A player's offensive turn ends when the person allows himself or herself to be dragged into the other person's topic. The person whose offensive turn lasts longest wins. Optional: third parties can try to "mess with" the opponents by trying to trick them into talking about the opponent's topic. (This is called a "Third Party Psychout" or "Curveball.")
"Bro/Sis, you just said minivans are stupid! You lose this game we are playing, which is called Margarita-Minivan."