やねん

it is; I am

→ だ
phrase Rare #33,506
it is; I am An informal Kansai-dialect sentence ending used to state or explain something, similar to standard Japanese なんだ. In questions such as なんやねん, it can express irritation or surprise.
JA: 今日は休みやねん。
EN: I'm off today.

なんやねん

What the hell?

— Love Letter (1995)

僕は水泳が下手やねん。

I'm terrible at swimming.

でも親父は立派やねん

But my dad is an amazing guy.

— Love Letter (1995)

チビたちを実家のおばあちゃんに会わせてきた帰りやねん

I’m on my way back after taking the little ones to see their grandma at my parents’ place.

— すずめの戸締まり (2022)

何の騒ぎやねん

What’s all the fuss about?

— Love Letter (1995)