別人牽驢你拔橛子 [别-牵驴----]

Jyutping
Pinyin bié ren qiān lǘ nǐ bá jué zi

Definitions (CC-CEDICT)
  1. lit. someone else stole the donkey; you only pulled up the stake it was tethered to (idiom)
  2. fig. you're the least culpable, but you're the one who gets the blame