1.When a person you're living with or close to steals from your home/cell.

2.A rat like narcissist with no respect for the people close to them.
You're a liar and Fucking box thief!

Dont trust "shawn" he's a box thief, The guy steals from his friends and his paralyzed mother.
by realnotfakeandbake January 8, 2016
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a lesbian who hooks up with other peoples girlfriends, often used in the prison context.
"that bitch is shady, stealing everyone's meat, she a box thief"
by dreadhead22 November 2, 2015
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