A backpack mounted rocket launcher originally used by Reinforcements of the Cheat Commandos. Handy for taking out those pesky enemy radar dishes.
"Justice Rocket Backpack Rocket Rocket Fire!!", Reinforcements said while taking out the enemy radar dish.
by Otaku Guardian February 08, 2005
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i go dumb in my backpack

yay area slang. it means you go dumb while wearing your character backpack. character backpacks are popular among baydestrians. it goes with the uniform: stunna shades, blue jeans, white tee, nike/vans, character backpack. characters on backpacks usually have spongebob or superheroes or care bears(for girls) on it.
i go dumb in my backpack, dumb in my backpack. dumb in my, dumb in my, dumb in my backpack.

-song by headbustaz feat. mistah fab
by yay area baby January 22, 2007
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i need to find my backpack

code for "i need to take a crap". it's the new #2, essentially.

based off in a popular sitcom when a boy was trying to lie to his friends saying he was looking for backpack while he was really taking a poo
Guy 1: "Dude, you look uncomfortable."
Guy 2: "Yeah, we need to go home real quick."
Girls: "Why?"
Guy 2: "I need to find my backpack."
Guy 1: "Ohh... yeah, let's go."
Girls: "Now?"
by WallyDetroit March 30, 2009
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a "national holiday" were kids all around the world don't bring their backpacks to school on January 13 and September 15.
Jake: Hey where's your backpack?

Anthony: Bro did you forget? Today is national don't bring your backpack to school day!
by novarae January 13, 2022
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Clear Backpack

Clear backpack is a term for describing a quiet kid. Usually how that the (at least) stereotype of a quiet kid needs one to prevent school shootings.

Please. If you see a quiet kid, treat that person with respect. Be nice to them. Nothing is worth the risk.
"See Todd over there? He needs a clear backpack."
"Yeah."
by BigGreasyFurry July 18, 2023
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Backpack Wobble

That little dance move you do when you're trying to take your backpack off your back
I walked in to class late, so I had to quietly do the Backpack Wobble without looking ridiculous.
by bootymix96 December 10, 2015
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Jamaican Backpack

In order to smuggle marijuana an individual places a bag of weed in another's anus and then pounds it in with his penis.
In order to get weed out of the Caribbean, Turbo gave Austin a Jamaican Backpack.
by ajmurphy October 19, 2018
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