呆あきれ笑わらい

noun

laughing in disbelief; scoffing laugh

A laugh of exasperation or astonishment at something so silly or stupid that it's hard to take seriously.

• 彼かれの言いい訳わけに、思おもわず呆あきれ笑わらいが出でた。

  I couldn't help but let out a scoffing laugh at his excuse.

• あまりに馬ば鹿かげた提てい案あんに、呆あきれ笑わらいするしかなかった。

  The proposal was so absurd that I could only laugh in disbelief.