give me a break!

Give me a break! and Give it a break!(used when you want sb else to stop criticizing, annoying or behaving in an unpleasant way to someone, or to stop saying sth that is not true) — Я тебя умоляю! Перестань! Я вас умоляю!

give sb a break (to stop criticizing or behaving in an unpleasant way to someone)

EXAMPLE: Give her a break — she's only a child and she didn't mean any harm.

cf
[cut sb some slack]