やるぜ

I'll do it

→ 遣る
phrase Rare #32,694
I'll do it An informal, strongly masculine expression using ぜ for emphasis. In these examples, やる often means “I'll do something to you” and conveys a threat or aggressive determination.
JA: 今日は俺が料理してやるぜ。
EN: I'll cook today!

俺が淫売みたいに扱ってやるぜ

I'll treat you like a whore.

— レザボア・ドッグス (1992)

次のケリをつけてやるぜ

I'll finish this in the next round.

— 紅の豚 (1992)

ポルコさもねえみな殺しにしてやるぜ

Otherwise, I'll kill every last one of you.

— 紅の豚 (1992)