The part of anything that hangs loose, having no strain upon it.
take in the slack
A tidal marsh or shallow that periodically fills and drains.
(normally said of a rope) Lax; not tense; not firmly extended.
a slack rope
Weak; not holding fast.
a slack hand
Lacking diligence or care; not earnest or eager.
slack in duty or service
Not active,successful, or violent.
Business is slack.
Excess; surplus to requirements.
the slack capacity of an oil pipeline
Vulgar; sexually explicit, especially in dancehall music.
Slackly.
slack dried hops
To slacken.
To mitigate; to reduce the strength of.
To lose cohesion or solidity by a chemical combination with water; to slake.
Lime slacks.
A temporary speed restriction where track maintenance or engineering work is being carried out at a particular place.
A valley, or small, shallow dell.
Small coal; coal dust.