Blocking the last penalty kick to win the match can generally produce a sportgasm.
After Vince Young's touchdown run to beat USC in the 2006 Rose Bowl National Championship game, I had a sportgasm.
It is said either by the person who insulted you, or a by stander who witnessed the insultation.
Can be used quite effectively with others in the "Ultimate Insult" group.
Donald: That's what ya mum said!
Ben: Oooooooh Burn!
Murray: "Marlin? Um...more like mullet. Total marlin vs. mullet confusion. I took a photo of you guys and put it on Facebook. I tagged it #thewrongkindofbigfish."