squarejohn

prison slang. A "square". A working stiff. A law abiding citizen. Female: square john broad.

"He's a squarejohn. Works 9 to 5 at the factory."

Also see sucker. "A squarejohn is always an easy mark."

by Dtat January 9, 2009

squarejohn

n. a lame-o, or. someone who displays no signs of hipness or sense of adventure whatsoever; a person who is overtly conservative, often likely to be a narc; a gaynal

Why did you ask Jason to party with us tonight? He is such a squarejohn; I heard he ratted out Phil for having a dimebag in school.

by Lord Gaynal September 26, 2006