For modern English speakers, QQ can be used in various ways. It is usually synonimous with crying, or whining:- It can be used as a complete response dismissively. "Stop whining and leave." -> "QQ"- It can be used mockingly. "Cry/Whine more" -> "QQ more."- It can be used as an emote to summarize whimpering or whining. "I hate this. T-T " -> "I hate this. QQ"For English speakers who are out of touch with modern culture (either too old, too FOB, or too noob to know better), QQ is used as abbr of " Quick Question ."For people from China, QQ is a commonly known instant messaging service, similar to AIM and MSN.