How to say "fart" in Japanese

• おならCommon
  nounThe everyday noun for a fart or wind; the neutral, inoffensive choice in ordinary conversation, such as mentioning your own or a child's gas.
• 屁へ
  nounThe blunt noun for the same thing; less common than おなら and rougher in tone, so it can come across as crude in ordinary conversation.
  おばあさんは必かならずおならをする。↗

  The old lady is bound to fart.
• 屁をひるへをひる
  godan verb, expressionA less common verb phrase meaning 'to fart; to break wind'; since it contains the blunt noun 屁, it sounds rough and fits casual talk better than polite conversation.
• 屁をこくへをこく
  expression, godan verbAlso 'to fart; to break wind', with the verb こく giving a rougher, more casual ring than ひる; in meaning the two phrases are close, and both share the bluntness of 屁.

For the noun, 「おなら」 is the everyday choice and 屁 the blunter one; for the verb, use 「屁をひる」 or 「屁をこく」, which differ little in meaning, with こく the rougher of the two.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• おならwind
• 屁へfart
• 屁をひるへをひるto fart
• 屁をこくへをこくto fart
• 出物でものfart
• ガスflatulence