A-square 

-When a friend or person prevents one from hooking up with a potential mate.
-When a 3rd party male comes in between a couple or steps in between a conversation between two people of the opposite sexs and cuts the tension, while the guy or girl attempts to flurt with the other sex. (aka Clock-block)

"Dude!!..get the fuck out of here, dont a-square me."
"Yo Sam, check that douchebag out,he's with your girl...go a-sqaure that shit.
"I a-sqaured your drunk ass, shes fucking brownote."

A-square by Sam Zgi January 17, 2008

a square 

A credit card

"Yo you got any squares" or
" do you want a square ?"

a square by The OG Dank June 25, 2016

a square peg in a round hole 

A misfit

Her form teacher forced her to dance at the performance when she's not good in it.What a square peg in a round hole!

a square peg in a round hole by Da RC Ninja May 29, 2017

A SQUARE FUCK 

Basically a person who has no faith in the human race.A boring shithead who thinks the game of life is over and has no respect for society as a whole .A love machine frequency fuck head ,who is basically a dirty fucken buy over.Meat for the fucking grinder is a square fuck

The sqaure fuck thinks its funny when a tower starts playing up and says and does things to make it worse for everyone ,fuck the circle .The buzz is on him and he doesnt come down to earth he must be a square fuck.

A SQUARE FUCK by ALEX DON August 13, 2006

catch a square 

To engage in a fight. Originated from the fact that boxing rings, where fights occur, are shaped squarely.

It is just a matter of minutes before the fish in the cellblock has to prove hes bout it and catch a square.

catch a square by rafael sadiq September 22, 2005

bum a square 

Can you loan me a cigarette?

Ed: Hey man, can I bum a square?
Random: Sure! *Hands over cigarette*

bum a square by ilurvbatman November 15, 2013

spare a square 

to give toilet paper to the person in the stall next to you.

"hey man, could you spare a square? I ran out over here."

spare a square by Dirk Gently March 8, 2006