青磚沙梨 [－砖－－]

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Definitions (粵典–words.hk)
  1. 名詞
    歇後語​：​「​咬​唔​入​」​／​「​咬​唔​入​反蝕​口水​」​；​比喻​某人​唔​似​外表​睇​咁​好​恰​，​唔​易​受​欺負
    Literally: green brick pear. A sandwich pun which the latter part is "cannot bite into it". To describe someone which is not as weak as what he looks like , if some others bully him will need to pay for that.
  2. 近義詞
    鐵沙梨

青磚沙梨 [－砖－－]

Jyutping cing1 zyun1 saa1 lei4
Pinyin qīng zhuān shā lí

Definitions (CC-CANTO)
  1. to describe a person to which someone has done something for, which resulted in not only a failure to get anything back in return, but also wasted the effort of someone