a square is a cigarette or a lame person
jason: yo you got a square
michael: wtf is a square
jason: ugh, you got a cigarette? you square
michael: you calling me lame or a cigarette?
In response of doing fraud with any bankcards
"yo man, I'm broke", "don't worry man, imma bang out some squares and we can split"
Another word for cheese slices. Much easier for dogs to understand because it's shorter than "cheese slices."
Do you want some squares, Mitten? Mitten loves squares!
"come my nigerian uncle, lets do squares and see how much money we get!"
(1) Unexciting, unadventurous, mainstream or dull. Generally used in describing a person with such attributes or who plays it safe. Historically, derived from a person whose goal in life is to have three "squares" a day (see definition (3) below), a roof over his head, a respectable job, a house, 2.5 kids, etc. Became a hip/popular expression of derision of the mainstream in the beat generation.