An irresistible impulse to grandstand in order to be seen as a hero. A selfish, lame attempt to enhance one's social status. The word derives from douche (obnoxious, offensive person) and freude (joy). Literally: "joy of being oneself, a douche."
Me: Bob Costas should have never opened his mouth about gun control.
You: I know,what a complete Douchefreude backfire that was.