貪多嚼不爛 [贪－－－烂]

Jyutping taam1 do1 zoek3 bat1 laan6
Pinyin tān duō jiáo bù làn

Definitions (CC-CEDICT)
  1. to bite off more than one can chew (idiom)
Definitions (Wiktionary)
  1. phrase, idiomatic
    bite off more than one can chew