The reason for the "N" on The Squid's shirt is because he was originally supposed to be from New York (in the show, he had attended "Newton Elementary School" when he lived in Kansas). Word never got to the artists so the "N" stayed. See more
Why were you screaming so much last night?
I had a dream about your face.
Do you wanna dream about my FIST?
Boys, what did I say about threatening each other at breakfast?