This is an activity done by people when they are "gettin stupid" or "gettin dumb" where a person gets so retarded that he takes a hammer and hits himself in the testicles. Bopping the bag is often discussed, but rarely done due to its obvious danger and the pain involved. It is most associated with hip-hop fans, particularly those who associate themselves with the hyphy scene. Bopping the bag is essentially the the big brother to activities such as ghostridin the whip or gas brake dippin. Women can bop their tits if they so choose, as they have no bag to bop.
we wuz gettin mad retarded up in dis mothafucka an Pooky got so stupid dat he starting boppin his bag. I said, "goddamn mothafucka you is bopping your bag!"

get mad stupid up in dis bitch an bog ya bag nadamsayin?
by OB-1 July 26, 2007
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"bop ya bag" is a phrase that some rappers (most notably OB-1) use in their songs. It refers to the act of bopping your bag, which is essentially smashing yourself in the testicles with a hammer. This activity is normally associated with the hyphy scene and other hip hop fans and is seen as the most extreme activity that one can engage in while getting retarded or thizz.
OB-1's song "bop ya bag" be slammin like a mothafucka. He be gettin mad stupid up in dis bitch an mothafuckaz be boppin they bags while listenin ta his jamz nadamsayin?
by Bag Boppin' Billy August 10, 2007
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a booty call who gets off on being sexually used and abused; she gets off on the rough stuff, and no matter how bad you treat her she always comes back for more. 2)the kind of woman who puts you in a sexual pickle because you really don't like or care about her at all and you kind of wish you didn't have anything to do with her, but she lets you fuck her and use her in any sexual way you desire, so you keep coming back for more, overlooking how horrible she is whenever your dick becomes your dictator. This term was originally derived from the childs toy called a bop bag (an inflatible bag with a sand filled pocket in the bottom which continually brings it back to an upright position after you punch it. The most popular one made was the one with a picture of Bozo the clown on it. It was instrumental in teaching children violence towards clowns).
Dude 1: Dude, what are you up to tonight?
Dude 2: Nothing bro, I'm probably gonna head over to Bisbee tonight and hit this bozo bop bag again.
by xenoflux May 26, 2006
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National bop bag day is on May 9th and we celebrate all the bop bags in the world
M: yoooooo c it’s national bop bag day

C: woo Andrew mush be exited

A: BOP BAGGGGG
by Maddy036 April 13, 2018
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