slack up

slack up (on something)

and slack off (on something)

to release the pressure or tension on something. Slack up on the rope a bit, will you? Please slack off!

Name	Pronounced	Usage
Alberic	-	Germanic Mythology
Kieron	KEER-awn, KEE-ar-awn	Irish
Ghalib	-	Arabic
Luanna	loo-AN-ə	English (Rare)
Coffey	['kɔfi]
Taras	tah-RAHS (Russian)	Ukrainian, Russian