Dispenser

1). TF2 Building that can only be built as Engineer (so are Sentry and Teleporters)
2). A FNF song in the Vs Mann Co. Mod, which hits pretty hard (includes Heavy, Scout, Engineer and Soldier)
3). Excluding TF2, a Dispenser basically just gives shit

Red Heavy: There's no Medic, P O O T I S DISPENSER HERE
Red Engineer: Dispenser going up!

Thrusting Sniper

When a TF2 Sniper crouches, looks up, and zooms in and out of their sniper rifle. Usually funny as fuck, even funnier when you do it when two snipers are fighting each other.

Red Sniper: What the fuck is that?
Red Engineer: Thrusting Sniper
-Red Sniper proceeds to get headshotted by a Blu Sniper.