To violently beat the living shit out of anyone or anything that pisses you off.
If you don't pass the pipe I'm gonna go agro on your ass.
by Rhynoo July 07, 2005
A person is agro when they are spitting mad, screaming, and yelling, and every vein in their head is about to bust!
by monarae July 14, 2008
to be generally negative and mean
by Anonymous June 12, 2003