walking tank - player that is unkillable to H.N.P.C.'s(Hostile None-Playable Characters)/enemies for short.
they usually have an item of some kind(BL1) other times they have bonus stats(BL2) or something else that keeps them alive.
in BL1 it was a so-called invincible shield but if you where modecai or had the right gun you could bypass the shield.
in BL2 if your bonus stats are high enough you can't die exept for barrels exploding,torge weapons,rocket launchers,grenades of any kind, weapons that have an exploding effect & random shit where you die for no reason.
when the grim reaper pulls your number there is no way out 14:50, April 26, 2014 (UTC)