cut sb some slack

cut sb some slack (American & Australian, informal) to allow someone to do something that is not usually allowed, or to treat someone less severely than is usual — не судить кого-л строго, ~ потворствовать (попустительствовать) кому-л; дать поблажку; сделать послабление

Example 1: Сut me some slack! (=give me more time, give me more freedom) — Не дави так на меня.
Example 2: You may be asking too much of your son. Cut him some slack. (Wayne Magnuson)