A large shit that makes a nuclear explosion of biblical proportions causing vaporizing of all matter within 200 yds following the pinching off a monstrous turd.
Detective: Why is this house vaporized, Fire Chief?
Fire Chief: Well sir, it looks like we have another case of an Atomic Shit this week.
Detective: I suspect someone within the household visited a spicy, Mexican restaurant within the past 24 hours.
by TheLargestShitInHistory December 28, 2011
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When one hangs from the top of a restroom stall over the toilet and deficates, releasing a death bomb of fecal matter that creates a title wave physically impossible to contain in even the best toilets.
The Atomic Shit is every school janitor's worst enemy.
by EZEZ March 5, 2009
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A shit excreted by the asshole of someone hanging from the ceiling rafters of a shower house landing perfectly in a toilet bowl.
Oh my gawd he just successfully took an atomic shit. What a legend!
by Savage legend 123 August 11, 2018
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Probably an assload of metric shit tons. The only way to tell about the shit in life that is beyond your normal imagined understanding.

shit tonmetric shit tonass loadholy shitshit
Galen & Patrick have an atomic shit ton of shit to learn about.
by tmshlp October 24, 2014
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