slack-up 

An offline, asyncronous Stand-up, done on Slack, where each member in a team posts their own update.

Useful for remote teams.

John and Marie are working from home today, and John's connection is crap, so let's do slack-up.

slack-up by The Real Mr Fish January 9, 2018

TAKING UP THE SLACK 

Discribes the moments before passing a huge turd or "windjammer"

To bend the door handle whilst taking up the slack

TAKING UP THE SLACK by Paul January 12, 2004

Stack up or fuck off 

Similar to ‘ Come and take it’. It’s an invitation for the individual person(s) who doesn’t like guns to attempt a seizure of the guns owned by the user of the phrase, in essence, ‘either do something or shut the fuck up’

“We’re coming for your guns, those don’t belong in society”, “ If you want them so bad then why don’t you stack up or fuck off”

Stack up or fuck off by Marchambone June 12, 2022

sack up 

To gather up one's courage for a daunting task.

Sargeant Bohannon shrieked at Private Entwhistle, "Sack up, you panty-wearing dipstick...bayonet practice may save your life...now lunge, thrust, stick and twist...repeat...

sack up by harry flashman July 28, 2003

sack up 

A demand to be a man and to stop acting craven or cowardly. A derivation of man up (which in itself is a derivation of cowboy up), although more insulting. While man up can be used as encouragement to do something, sack up is almost always a challenge to cease doing something that should be beneath you

"Oh sweet mother of god! The terrorists are going to blow us up with Snapple bottles!" _This_ is terrorism's A-game? Sack up, people.

sack up by Quine August 13, 2006

shack up 

1. To move in to shared acommodation with someone, generally of the opposite sex for purposes of sexual intercourse.

I'm shacked up with a few sheilas.

shack up by sasquatchian June 5, 2005

Stack Up or Shut Up 

A common term a hardcore 2nd Amendment Supporter will tell Anti-Gunners that want to confiscate guns.
Usually, these lefty's want government goons like the Alcohol, Tobacoo, Firearms and Explosives or known as the ATF to confiscate your guns instead of themselves as they are cowards.

Lefty: You don't need your AR-15. We're coming for them.
Average Gun Owner: You gonna come get them yourself? Stack Up or Shut Up!

Stack Up or Shut Up by AnCapGigaChad June 6, 2022