Valved: To have a explosive device in a Valve game blow up in your face due to invisible walls, usually put in place to prevent exploiting/leaving the map.
Man on voice: CRAP! Just bew off 89 health with that... I got Valved by that damn invisible wall.
To have it up the arse (roughly).
Man 1: Where you been squire?
Man 2: Got valved
Man 1: Man..... that shits fence
Man 2: Not with a bottle of wine it aint
Man 1: Hmmmmmmmmmm dank, it must flow better