なんでやねん

なんでやねん
expression
what the heck; why (Kansai dialect tsukkomi)
informalcolloquialexpression
1. what the heck; why on earth
A Kansai dialect expression used as a tsukkomi (retort) in manzai comedy, or to express surprise, disbelief, or exasperation at something illogical or absurd.
「明日(あした)は日曜日(にちようび)やから月曜日(げつようび)や」「なんでやねん！」
"Tomorrow is Sunday, so it's Monday." "What the heck!"
遅刻(ちこく)の理由(りゆう)が「犬(いぬ)に追(お)いかけられた」って、なんでやねん。
"A dog chased me" as a reason for being late? What the heck.
なんでやねん、そんなわけないやろ。
What the heck, that can't be right.

Dialect

Kansai (関西(かんさい)) dialect, iconic expression from Osaka comedy culture.

Comedy context

Central to 漫才(まんざい) (manzai) comedy as the classic 突(つ)っ込(こ)み (tsukkomi - straight man's retort) to a ボケ (boke - funny man's absurd statement).

Common patterns

なんで (why) + や (copula, Kansai) + ねん (emphatic ending, Kansai)

Standard equivalent

なんでだよ / どうしてだよ (standard Japanese)

Forms

  • なんでや - Why? (shorter)
  • どないやねん - What's up with that?
  • 何(なに)やねん - What is it?

Cultural note

This expression has become nationally recognized as a symbol of Osaka humor. It's often used playfully even outside Kansai.

general
Added 2026.1.20 17:22 · Revised 2026.9.2 13:01
07500/07529_nandeyanen