It is the little loop on the pant leg of a (usually) carpenter pants that is normally used to carry a hammer for convenience. Instead it is viewed as worn by an Alpha type held onto by a little bitch or beta type that worships the strap bearer.

ex. Similar concept to Prisons Breaks Theodore “T-BagBagwell and his pocket
Bubba: Better not let go of dis bitch strap Henry.

Don’t bother asking Ian for help, Mikey’s got him on his bitch strap
by pimppapy March 2, 2021
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An act where pirating takes place and a member apart of the ships crew did not take part in the pirating event, and begins to wine like a little bitch.
All of the crew memebers aboard the Black Pearl took part in a act of Pirating except for Luch. as a result he began to cry and complain and his crew soon called him a Boot Strap Bitch.
by tniggz December 22, 2009
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