An altered state experienced by participants and/or fans of a sporting event which render them incapable or rational thought. It can occur before, during, and after the event. Face painting and conspiracy theories are all examples of people experiencing competition psychosis.
Dude 1: Can't believe how those refs were cheating my boys.
The less popular version of Casual sex. This type of intercourse usually has match tournaments hosted in underground facilities far away from society. The matches usually consist on who can last the longest and for additional points, moans are rated on the intensity and measured in DB units. There is also a leaderboard for the true champions of such activity, your moms at the top lol.
Dan: Yo, I just had competitive sex with my gf last night. It was crazy! I almost got second place.
Tom: What the fuck are you talking about