Skip to main content
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.
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
You need to sack up instead of crying about your pussy hurting. (see also wah my pussy hurts.
sack up by jaydawg May 27, 2004
This expression refers to a man's testicle sack, and is used to demand courage and action from another man. In long from it's equivalent to: Grab your sack to make sure your balls are there, be brave and do-it/buy-it/break-up/etc. In shorthand it's: Sack up and do it/buy-it/break-up/etc.
Democrat's need to sack up and stop the reckless, fear-driven war machine that the Neo-Republican party has sadly become.

Republican's need to sack up and admit that they are afraid of almost everything that is not white and Christian, and that their fear is why they want to drop bombs all the time.

Peggy Noonan in reference to Rush Limbaugh and other right wing pundits:

"But I would say of these men (why, in the continuing age of Bill Clinton, does the emoting come from the men?) who are fighting one another as they resist naming the cause for the fight: Sack up, get serious, define."
sack up by Marko D January 11, 2009
The figurative act of growing a scrotum and pull of a crazy stunt or to face some sort of tough task
Sack up u pussy and fuck dat bitch
sack up by L-White April 16, 2008

sack up and do it 

to come up with the balls to do something
Dude 1: I'm not sure how to ask that girl out man
Dude 2: Just sack up and do it
sack up and do it by farmer boy June 17, 2008

up-sack-crack-wax 

The removal of hair from the ass crack forward to and including the ball sack using hot wax.
Nick liked his wife's Brazilian bikini wax so much that he decided to get himself an up-sack-crack-wax of his very own.
up-sack-crack-wax by Dave-o-rama September 29, 2006
More from Urban Dictionary

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
Load more