Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLES FROM THE WEB FOR SLACK UP

But you are not exactly quite the flier at cricket that you are at 'footer,' so you can't afford to slack up now.

The order to ease away the rope or tackle by which anything is held fast; as, "Slack up the hawser."

Slack up the cable of the latter anchor, and heave in on that of the first, until you have the same scope to each anchor.

He was a medical man, past forty, beginning to slack up a little in his elasticity and strength.

A little later the Coyote obviously had to slack up to keep from running away altogether.

Slack up, if you please, and let me have all the line you can, without casting off from your body.

RELATED WORDS AND SYNONYMS FOR SLACK UP

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.