slap someone around

idiomatic

(idiomatic) To be brutal towards someone, especially physically.

Japanese Meaning

（特に身体的に）誰かに対して、無慈悲かつ乱暴な扱いをする / 誰かに対し暴力的に、容赦なく身体的な攻撃を加える

If you keep provoking him, he'll slap someone around without mercy.

もし彼を挑発し続ければ、彼は容赦なく人をひどく殴るだろう。

Sense（1）

(idiomatic) To be brutal towards someone, especially physically.

slaps someone around

（ present singular third-person ）

slapping someone around

（ participle present ）

slapped someone around

（ participle past ）

slapped someone around

（ past ）