Unslack 

To not slack; to do work in a timely and appropriate manner

Person 1 "Gabby is always on facebook these days"

Person 2 "Yeah she seriously needs to unslack!"

Unslack by Jeevs88 November 1, 2009

unshackle 

free from shackles.

After years of feeling weighed down with my secret, I felt unshackled and alive after revealing it.

unshackle by Morgan T November 10, 2006

unsack

A vagina.

That woman is such a bitch. Someone should kick her in her unsack.

unsack by the_real_ian July 3, 2008

unlackable 

The ability to not get caught lackin by the boys

Chris tried to catch me lackin but im unlackable

unlackable by Dirtysquirty2 October 17, 2021

unblack 

The Christian opposition to black metal that is known to use lots of symbols like inverted inverted-crosses, broken pentagrams, and star's of david. Unblack comes from the band Horde, that released "Hellig Usvart"(holy unblack) on Nuclear Blast Records.

Horde, Abdijah, Duister Maanlicht, Crimson Moonlight, Goath Anair

unblack by Atramentous November 14, 2004

unsnackle 

removing a food item from the snack category

Well, I guess we'll have to unsnackle the Doritos so we can eat some for breakfast.

unsnackle by William W. Waterford December 2, 2020

upslack 

1. Picking up other people's slack.
2. Something that is not a lunch box.

"Man, I was upslacking for Johnny all day, and I didn't even get a thanks!"

upslack by Sierra "Oreo" C. June 30, 2005