食言而肥 shí yán ér féi

DEFINITIONS

  1. lit. to grow fat eating one's words (idiom)
  2. fig. not to live up to one's promises

CHARACTERS

食 shí eat; meal; food; KangXi radical number 184
言 yán words, speech; speak, say
而 ér and; and then; and yet; but
肥 féi fat, plump, obese; fertile