Techno Dance Party (or TDP) was coined by the coolest soccer team ever known to man kind. TDP's originally consisted of jamming to techno on the school buses after games, terrifying motorists in the process. This then leaked to outsiders. Shirts are optional during TDP's.
Dude 1 "Hey Broski I got some new Basshunter"
Dude 2 "Techno Dance Party?"