First heard in the MMORPG "World of Warcraft," this term describes the act of accidently engaging an enemy, and involving your allies in a fight they weren't prepared for.
This action is highly frowned upon, and frequent offenders are commonly kicked from their groups and shunned only slightly less than a Leroy Jenkins.
Group leader: Alright- that was close- let's rez the dead and lick our wounds for a second before the boss-- Awe hell, who pulled?
Rest of the group: That Huntard we PUGged facepulled AGAIN! Kick his ass!
A punch so powerful to the extent of completely obliterating the receiver of the facefull's face. This punch must knockthe one on the receiving end out, and obviously, must be applied to the face.
A: "This jackass was annoying me to death, I hated it."
B: "So? What did you do?"
A: "Give him a facefull. Obviously."