This is a pretty cool move for Single Player.
bind x "taunt;wait 120;thereisnospoon"
it is mainly for visual effect and personal enjoyment. what is does is it makes you taunt and partway through the taunt (depending how long you make the wait) the camera the will pan around you and make time slow down like when you kill bosses and stuff.
it is very cool visualy but other that that it serves no real purpose.
Try it and tell me what you think.