肉包子打狗 [－－－－－]

Jyutping juk6 baau1 zi2 daa2 gau2
Pinyin ròu bāo zi dǎ gǒu

Definitions (CC-CEDICT)
  1. lit. to fling a meat bun at a dog (idiom)
  2. fig. to flush (one's money or efforts) down the toilet
  3. to kiss sth goodbye
Definitions (Wiktionary)
  1. phrase, figuratively, idiomatic
    never return