Meaning

• 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.

Meaning

• (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.

Meaning

• Slackly.

  "slack dried hops"