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A term used in MMORPG's in multiple forms.

v: To provoke a mob (enemy or hostile NPC) to attack you by entering its aggro range. The aggro range (or radius) is the zone around the mob which, if entered, will cause it to attack without provocation.

n: Used to describe the attention of a mob, or its current target. In group fights, the Tank is supposed to "hold aggro" by keeping the mobs focused on him. To "have aggro" is to currently be the target of a hostile mob. Aggro is also sometimes used interchangeably with the term Threat when referring to the DPS.
v:

I got too close to the boss and I aggro'd him by accident, so I had to bubble.

n:

The tank couldn't hold aggro and the group wiped.

The healer has aggro. Pally, pull that aggro off the healer.

That Lock is pulling too much aggro, he needs to back off the DPS.
by Hello378 September 01, 2010
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1. Aggressive
2. Angry
3. That mountain on the one nickoldeon show Global Guts the Aggro Krag
1. OMG OMG THT MONSTXOR IS TEH AGGRO!
2. JESUS H CHRIST THAT HOMEWORK MADE ME AGGRO
3.Look at that retarded kid he cant even climb the aggrokrag
by Nate January 23, 2005
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Shortened version of aggravated.

Crazy wild.
Don't get all Aggro!

The line was so long, and it was so hot, I started getting totally Aggro.

He wanted to fight, so I just went totally aggro!
by octavius March 09, 2004
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getting all mad at somethin for no reason
You know, you didnt have to go all aggro on that speaker box.
by zack January 06, 2005
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18
1. Short for agricultural.
2. Short for aggregate.
1. Father is an agro phile in Texas. Mother's on the bar most every night.

2. I don't want to hear the inter ludes, just tell me the aggregates. Got that? Just the aggros.

3. You need to add a lot of aggregate or you are going to run out of cement. So go heavy on the aggro
by Tommie T June 28, 2009
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19
Having the attention of someone/something.

Often used term in the game "World of Warcraft".
Casters, if you pull aggro you need to dump it.

Wait for the tank to aggro.

Be careful that you don't pull aggro.

Hunter pulls, tank aggros, kill the marked.
by MePoop April 19, 2006
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usually meaning Industrial Metal, but also could mean agressive
by Edwin December 26, 2003
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