"QQ" refers to the action of one crying due to being pawned by some other pro at a online game such as warcraft 3. "dota"
"QQ" represents two eyes with tears coming out of them suggesting the player who keeps on getting owned is crying at that stage
Usually used and seen in either dota, cs or other online multi-player games by hardcore ayshun gamers
Extremez: OMG YOU GOT FUCKING OWNED YOU NOOBSHIT, QQ TIME
cdp: nah man im lagging
Rjay: siffles, !DR 90
(cdp has left the game)
Rjay: wow he QQ'ed hard, 0-0-12
Extremez: zfz, dw, BEN10 TIME!!!!