slack

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Related to slack off: roughshod, up to par

slack

loose; not taut.

slack cap
a can of meat with one of the ends bulging slightly indicating the beginnings of a blown can.
slack loin
hollow-flanked with too much room between the last rib and the thigh.
slack pastern
too much slope in the pastern.
References in periodicals archive ?
People who are already motivated could well feel the urge to slack off and the only ones who benefit from the drink would be slackers.
If we slack off, we know they're going to slack off.
I'm certainly not going to slack off now, winning this medal has given me a real taste for success and made all the hard training worth while,' said Davies.
We scored four and could have had a few more but I was really pleased with the fact that we didn't slack off after going two up.
Others' experiments with male-dominant species suggest that males slack off on parenting when they have evidence the chicks are not their own.
A former member of the Paul Sanasardo Dance Company, she encourages beginners to work just as hard as professionals, and she never allows professionals to slack off.
Teva Pharmaceuticals, Chevron Texaco, and Murphy Oil have seen their relative-strength performance slack off slightly of late.
JONNY BUNYAN has warned Glasgow Rocks they must not slack off if they want to reach the BBL top four.
Celtic have effectively had the title handed to them by Rangers' 10-point penalty but won't slack off at Easter Road today and are a banker at 2-5 (Skybet) to make it 18 domestic wins in a row.
I've had coaches who let everyone kind of slack off, and we didn't win many games.
If everyone [the teachers and classmates] lets you slack off, it's more hazardous to yourself.