slack 

one who is dragging down progress

We are getting nowhere on our new project people, seems like Bob is the SLACK around here.

slack by pumphouseman October 14, 2003

slack 

adjective: unproductive, lazy, good for nothing.

D is slck. He aint done shit all week.

slack by T- to the mutha fu#$in' Max June 4, 2003

Slack 

Normal state for a wordTech/word. Generally regarded by the IT community at large as a good thing.

"I dont work, I'm in IT"

I'm getting paid to slack off at work all day.

IRC is great, it allows me to look like I am working when I am really slacking like a pro

Slack by Cabe June 18, 2003

slack 

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!

slack by The Bitch Herself! Mwah x May 15, 2005

Slack 

a ter for girlfriend or sex slave

she's totally my slack man

Slack by Zheai August 7, 2010

slack 

To slap someone with one's penis

"Ugh! I can't believe you just slacked me!"

slack by Superfly June 29, 2004

Slack 

Sumtin that's beat or not of good quality. Sombody that's poor or broke.

Mark U A Slack ass nigga.

Slack by LiL'Nappy Jones February 20, 2005