為所欲為
simp为所欲为wai4 so2 juk6 wai4wéi suǒ yù wéi
English
- (idiom) to do whatever one pleases
- (usually negative) to act willfully; to do as one likes with no regard for others
粵語 — Cantonese
- 鍾意做乜就做乜（通常有負面意思）
Examples
去外國留學，冇父母喺身邊，我可以為所欲為喇！
Studying overseas and not staying with my parents, I can do whatever I want!
Sources: cc-cedict, words.hk