我爱光头强
[wŏ ài guāng tóu qiáng]
This roughly translates into 'I love Guangtouqiang', referring to a cartoon character from the popular series 'Pleasant Goat and Big Big Wolf'. Lightbulb-head-Strong(Guangtou-Qiang), whose head shape just like a bald man's, is depicted smart yet tricky, lovable in spite of causing lots of troubles. By choosing this username, users likely want to express how fond he is of his cleverness or naughty side.