When you ejaculate so hard everything within a square mile is instantly impregnated.
Bill: Dude, I had the best nuclear cumsplosion last night! I've got several hundred children on the way now.

Will: That's dope, bruh.
by Wally West the stalker December 5, 2016
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When you ejaculate so hard it destroys everything in a two mile radius.
"Dude, I had such good sex last night I made a nuclear cumsplosion."
by Tecthe (@EagleCheesecake) December 2, 2016
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Where the Man cums in the vagina, and the Woman Squirts at the same time...
BOOM CUMSPLOSION!!!!
Then you both take a shower afterwards cause yall are covered in cum.
*Me and her cum at the same time* *Cumsplosion happens*
*makes a fucking mess in our bedroom*
"So... Shower??"

Her: "Yeah... Felt good tho"
by xxigilzbyKaijo February 13, 2023
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