你行你上，不行別屄屄 [－－－－－－－别－－]

Jyutping nei5 hong2 nei5 soeng5 ， bat1 hang4 bit6 bei1 bei1
Pinyin nǐ xíng nǐ shàng ， bù xíng bié bī bi

Definitions (Wiktionary)
  1. phrase, neologism, slang
    Go ahead and do it if you think you can, otherwise stop the criticism. / Put up or shut up.