When in beer pong, a player sinks the ball in the drinking cup of another player and the first player's partner immediately repeats the action yielding a double sunk drinking cup. The first sink ends the game, the second sink results in the player being "stewed." The result of being "stewed" is a permanent ending of the player's beer pong career.
"Holy shit...I've never seen anyone get stewed before. You just got owned in beer pong."