SHOW me you're a winner (said the coach).
Yo Mama's organs are so horny even strong men can't win (where win=escape) .
a win or lose situation. Fighting over a girl/boy. Not neccesairly the final, decisive battle, the Superbowl. . The game/battle is won or lost on account of ..XXX. .
to do like a dick. I mean, to do something selfishly without asking, like you're the only one on the planet. I ate MY cake, but then I かってに ate your cake too, and just look at you like, "What?" (****)