The scrupulous sexual act that, after ingesting a hot and greasy meal, a female rides a male in the reverse cowgirl position, during which time, despite the menacing rumble of the female' stomach growling and when the male is unsuspicious and focused, the female unleashes a volcanic hot and liquidey mess of diarrhea upon the unsuspecting male.
Last weekend, Scott picked up a ungroomed, gender questionable, female from the local White Castle. After some heavy petting and grinding, she assumed the reverse cowgirl position on top of James and proceeded to give him a Hiroshima Hot Brown. Scott was ecstatic!
by jackyl52 January 9, 2011
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Elevating oneself as high as possible above the toilet while dropping fecal matter into the water of the toilet. If done correctly a gigantic splash should occur. If shit hits anywhere but the water you have failed your mission...the japanese win the war.
AJ: Hey how about rob's Hiroshima (Aerial Assault) attack yesterday
TJ: Dude, his head almost hit the ceiling!
Ryan: So the Japanese lost the war again!
by Disrespect That Toilet! March 17, 2010
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When someone lets a fart off and you can taste and feel the fart when this happens the only option you have is to shout HIROSHIMA and roll around on the floor dying of the toxic blast of stench!
bayley just let off a hiroshima toxic fart!

HIROSHIMA!
by Doctor unnsherguery November 29, 2012
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The process of having anal sex with a female, and whilst thrusting, you urinate into the anus.
Last night johnny gave me a Hiroshima tea party.
by John Chirco August 30, 2007
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During the climax of sexual intimacy, the man pulls out or stops doing what he is doing just before he busts his nut, and shoots his load into the female's nose. Then she precede's to blow her nose, thus shooting the jesus juice out of her nose, ie. like a rocket.
I left sally with a sinus infection after giving her a fat Hiroshima Snot Rocket.
by ThugLife831 November 23, 2009
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An ebay turbo that can surpass 1000 hp in your shit box and send a piston to the next neighboring galaxy in universe.
No one: ....
Me: Hey I think I want to create a global pandemic today. I think i’ll install a hiroshima spinny boi and create an explosion so big from my engine bay that they may think is the brink of WW3.
by Zyper1 February 21, 2020
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The worst possible thing that could befall a face.
man 1: I think I'm going to laugh in that rapper's face.

man 2:I wouldn't, unless you enjoy getting Hiroshima on your face.
by Knawmean June 22, 2010
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