1. 〔おなら〕wind;((卑)) a fart
    • 屁をひる[する]
    • break wind/pass gas/((卑)) fart
    • 約束を破ることなど屁とも思っていない
    • He 「couldn't care less [《俗》 doesn't give a damn] about breaking his promise.
    • そんなこと屁のかっぱだ
    • 〔容易だ〕It's nothing./《口》 It's a cinch./〔何とも思わない〕I don't care (about that) at all.