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1. to get ready for a fight

2. to get in the fighting position
"Aye dawg! You betta square up cause I'm fittin to knock your ass out!"

"I squared up with that fool cause I thought he wanted to throw down!"
by jOhNnY bOi September 20, 2005
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May 14 Word of the Day
Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy
Person A: Man, that nutcase Martin Bryant guy shot 35 people in Tasmania!

Person B: No, he wasn't a nutcase, that was just a psyop so the government could have an excuse to ban guns.
by Mystikan April 11, 2006
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Fight. Not square root. Do not mistake this when your math teacher asks you to square root.
by Da K den April 11, 2015
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to get ready to fight; get in the fighting position
Ay man be ready to square up wen dat fool comes down here!
by johnny boi September 10, 2005
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The term 'Square Up' means that you typically want to threaten them in a playful manner. Unless you are a bitter one.
by jewelslin November 16, 2017
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What someone says when they want to fight you.
Person 1: You are weak as shit, I could kick your ass
Person 2: Alright then square up.
by Riot_9000 December 21, 2020
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To settle a bill or debt. Square refers to the honesty of the deal, and up is the action of payment or performing the task.

To tighten the connections or correct the angles in a construction project, since squares are made of right angles at exactly ninety degrees, which is the majority of building connections and materials.

To confirm plans and reservations, straighten, or organize.
"When I come by tomorrow, I'll square up with you on the loan you gave me."

"If this drywall's gonna hang right, you better square up that door frame."

"I got my vacation all squared up."

"It's supposed to be in the seventies this weekend, so I'm gonna get the lawn squared up."
by Coell March 15, 2006
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