one who is dragging down progress
We are getting nowhere on our new project people, seems like Bob is the SLACK around here.
by pumphouseman October 14, 2003

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D Harks... one who is lazy and unwilling to work...Harks
get over here you slack! its time for your beating.
by son of santa April 19, 2003

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a ter for girlfriend or sex slave
she's totally my slack man
by Zheai August 06, 2010

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Lazy

Also try slackist and slackisum
Man am I realy slack
by Darken May 22, 2005

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A slut, will do anything with partner

see tight
A:i wouldn't sleep with her she'll have all sorts, she lost her virginity 3 years ago man
B:How?! shes only 13!
A:Exactly! shes slack as any-fucking-thing!
by The Bitch Herself! Mwah x May 14, 2005

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To slap someone with one's penis
"Ugh! I can't believe you just slacked me!"
by Superfly June 29, 2004

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For a female who has either had too many children or had to many cocks in her at once.
Oh my God check out the size of her slack poon
by Martin Dean/Chris Shelton May 18, 2004

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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