今度やったら

if you do it again

→ 今度
phrase Rare #39,894
if you do it again Used to warn or threaten someone about repeating an action; often followed by a strong consequence. 今度 means “next time,” and やったら means “if you do it.”
JA: 今度やったら、本当に許さないよ。
EN: If you do it again, I really won't forgive you.

今度やったら許さないからね

If you do that again, I won't forgive you.

今度やったらブッ殺してやるからな

If you do that again, I'll fucking kill you.

— シティ・オブ・ゴッド (2002)

今度やったらを折るからな

If you do that again, I'll break your legs!

— ブエノスアイレス (1997)

今度やったら許さない

If you ever do that again, I won't forgive you!

— ANORA アノーラ (2024)