It is when a mail (or femile if they have a strap-on) lays there partner on their belly with their butt exposed and jumps in the air and slams their penis into their partners butt
Dude, my gf wanted to do something crazy last night, so I butt nuked her, it was awesome but painful
by KANT D3Ni April 20, 2017

by yardardar April 09, 2021

by cowtroller June 07, 2014

by 1t82 November 17, 2016

by Im on the roof of nuke town September 14, 2022

Hym "Don't care. 'Drown you all in a lake od irradiated fire' sounds dope. So I'm just going to keep saying it. Hurray, Nukes!"
by Hym Iam August 10, 2025

by Alex Emro October 08, 2021
