ctap

A ctap, duck tap or crouch tap is a rocket jump in Team Fortress 2 with different timing which tricks the soruce engine into thinking the player is walking and crouching at the same time, giving him extra momentum. Not many people can consistently perform this. May help with utilising ubercharges as a Soldier.

Open player #1: Dude, how does TLR have such phat ubers?
Open players #2: He ctaps, dude. All that extra distance means more phat-ness.