poetic justice

名词 poetic justice:

1. an outcome in which virtue triumphs over vice (often ironically)
   同义词：just deserts

1. He pushed several other runners to get to the front so it was poetic justice when he tripped and fell.
   他把另外几名跑垒者推上场而自己却绊倒了，因此这对他来说是一种理想的赏罚。