to lower the strength, experience, or any attribute of a certain character in any MMORPG via patching.
The word originated from Star Wars Galaxies (Sony online entertainment, Lucas Arts). By Ryan Nero and Rob Preusse. As a joke they invented several words in game and were curios to see if they stuck.
"They totallynerfed the XP in groups...", "My mage got soooo nerfed on the last patch!"
a term used in off road desert racing to describe the act of bumping into another race vehicle from behind to let them knowyou would like to pass and they refuse to move out of the way.
I was following in that guys dust and he wouldn't pull over so I had to nerf him out of the way.