Square john British noun phrase informal slang
This phrase is primarily used in criminal and prison communities.
A guy of integrity, respect, and adherence to the law.
Steven said his plan would not infringe on the rights of square johns.
Bill is a square john. Most of prisoners help him a lot.
To break the rules or refuse to adhere to the regulations.
To have someone completely under your control
Used to say that what you're saying is true, or that you'll do what you promise .
Plural nouns: square johns.