a person who's stupid, boring, lame etc...
he's a fuckin square bear!
A square head is pretty much what it sounds like- a person or thing with a square head.
whom who cannot wheel a broad.
Check out that duster, hes ridding on square wheels!
The term 'Square Up' means that you typically want to threaten them in a playful manner. Unless you are a bitter one.
to have two glocks in your pants, handles facing in, thus looking like square pants, used by ali vegas in his song sponge bob
see that guy over there, hes packin square pants, watch out for him
lol x lol or lol to the power of two
a way for maths geeks to express that something was very funny.
See also lol to the power of -1
-"Somewhere in the cosmos, he said, along with all the planets inhabited by humanoids, reptiloids, fishoids, walking-treeoids and super intelligent shades of the colour blue, there was also a planet entirely given over to biro life forms, and it was to this planet that unattended biros would make their way, slipping quietly through wormholes in space to a world where they knew they could enjoy a uniquely biroid lifestyle, responding to highly biro orientated stimuli and in fact leading the biro equivalent of The Good Life."
-Lol squared!
Having a non existence jawline
Ethan: Do I have a square head
Elijah: Yea dude, your jawline is non existent
Ethan: shut up