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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The next backpack

someone that is about to get they booty beat
He threatened you?? I guess he’s going to be the next backpack
by im never getting married January 16, 2020
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Backpacking thru Spain

Engaging in man on man sexual encounters during your first stint in the slammer.
Phil met Hector and went Backpacking thru Spain with him while he was locked up in Rikers.
by Sactowns Finest December 04, 2020
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extreme backpacking

When you put random inanimate objects in your partners butt for fun, with no lube.
Dorothy and I are going to try out some extreme backpacking this weekend. Would you like to be apart of the insertion?
by Matt42490 February 06, 2018
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