The acto of "owning" "destroying" "completely
mangling" the enemy. Usually used in online
multiplayer games, is often tagged to
real life though.
That was some pretty awesome tankage when you lobbed that grenade at those grunts.
Holy shit that was some extreme tankage you put on that warthog.
Robbie runs into Robert, whacks
straight off him and hits
the ground with a loud thud and goes owwwwwwww. Thats tankage