二屄青年歡樂多 [－－－－欢乐－]

Jyutping ji6 bei1 cing1 nin4 fun1 lok6 do1
Pinyin èr bī qīng nián huān lè duō

Definitions (Wiktionary)
  1. phrase, neologism, slang, vulgar
    The carefree and idiotic-looking young person is having a lot of fun.