Dropping a load off an upper deck on to someone, ideally their chest.
I dropped a Hiroshima on my lovers chest from our loft in the cabin and he screamed with delight.
by Bunnyandchip March 31, 2019
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One of the two places on earth where WMDs were ACTUALLY used.
The atomic Bomb was dropped on Hiroshime and Nagasaki. this is the only time in the history of war that a weapon of MASS DESTRUCTION was actually used. Think you f$cking americans.
by Totally_OSM! May 18, 2005
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Jailbait or the act of engaging in sexual acts with jailbait.

The term has gained popularity due to Suga Fist's hit single by the same name.
Who got that Hiroshima? It could be your baby sister.
by DigitalD April 20, 2006
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To cum on a persons face and eyes
I gave her a Hiroshima. I came on her face, there was a blinding white light then millions dead
by Timmah08 December 31, 2008
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When without warning you get the immediate urge to take a shit, running to the bathroom you start to unbutton your pants, and right as you make it to the toilet it explodes out of your ass and it is all over in a matter of seconds.
Brent: "You ready to get on some halo?"
Mike : "Ah hell, I gotta go drop a deuce"

Less than 30 seconds later...

Brent: "That was the quickest shit ever!"
Mike : "I know, I Hiroshima'd it"
by Who? Mike James March 7, 2007
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A mushroom head (dick tip) without a shaft, usually a female with an abnormally fat clitorus or a male with a very short, fat, hideous pecker.
Oh shit. That dude over there is the one I was telling you about with the fucking Hiroshima. Worst. Fuck. Ever.
by Trandy18 January 19, 2020
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Placing a weed filled blunt into a bowl and packing more weed in around the blunt. The blunt hits fat through the bong and then when it gets to the packed bowl its as if a bomb has dropped. You will get sooooooooo blown
Let's go buy a blunt and bomb Hiroshima after school.
by 024subminylf September 17, 2009
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