to stomp on someone while fucking them, similar to a foot-to-the-face piledriver position. Usually refers to somebody losing so badly at whatever they attempted that other, more common insults do not to the failure justice.
1. I've never seen someone lose so badly in this type of game, he got fuckstomped like no other.
2. This game has become such an ugly fuckstomping that I'm just going to leave at half time.