“Square up” is a way of saying to stop being a pussy or to man the fuck up. This slang is normally used by tough as shit gangsters as a way to call their fellow gangster a pussy.
Gangster 1: No fuckin way I’m doing that shit nigga.
Gangster 2: Square up bitch we still gonna do this!!
Gangster 1: Calling me a pussy bitch? You Betta watch your back!
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!"
Fight. Not square root. Do not mistake this when your math teacher asks you to square root.
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.
to get ready to fight; get in the fighting position
Ay man be ready to square up wen dat fool comes down here!
The term 'Square Up' means that you typically want to threaten them in a playful manner. Unless you are a bitter one.