Definitions for slacks

((usually in the plural) pants for casual wear)

(dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve)

(a noticeable deterioration in performance or quality; "the team went into a slump"; "a gradual slack in output"; "a drop-off in attendance"; "a falloff in quality")

(a stretch of water without current or movement; "suddenly they were in a slack and the water was motionless")

(a soft wet area of low-lying land that sinks underfoot)

(the quality of being loose (not taut); "he hadn't counted on the slackness of the rope")

(a cord or rope or cable that is hanging loosely; "he took up the slack")

(avoid responsibilities and work, be idle)

(be inattentive to, or neglect; "He slacks his attention")

(release tension on; "slack the rope")

(make less active or fast; "He slackened his pace as he got tired"; "Don't relax your efforts now")

(become slow or slower; "Production slowed")

(make less active or intense)

(become less in amount or intensity; "The storm abated"; "The rain let up after a few hours")

(cause to heat and crumble by treatment with water; "slack lime")