王八犊子能上墙
[wáng bā dú zi néng shàng qiáng]
This nickname, a rather provocative and colloquial Chinese term, suggests someone who is unconventional and cheeky. '王八犊子' (wangba duzi) in this context conveys an impish or naughty persona, while '能上墙' (can go on the wall) metaphorically implies being bold enough to be displayed, suggesting someone not following the rules and expressing their individuality openly.