When having sex with a black girl in the missionary position, you pull out before ejaculating and shoot a white load up her stomach and chest, thus giving the appearance of a tuxedo.
The Tuxedo terrorist is a man In the gameteam fortress 2 that is the 9th class. He goes around with a knife skin thinking the same rules from csgo apply to tf2 and try's to head shot people across the map with the amby, because he never read the jungle inferno patch notes. If somehow succsessful in such feats, he gets on the ground and does a lobster dance and screams random weaboo quotes for all masked backstabers are french weaboos.