Top Definition
Violent act of having eaten some seriously hot food some hours before, and shitting it out at high velocity and high heat - It feels like your ass has become a star going supernova.
It was a horrible event that occurred as result of LJ's last bite into what was the most suspect yet delicious Cabo burger; because on the plane ride home the next morning, his ass went rectal nova in the airplane bathroom.
by Johnny Del Fuego December 07, 2008
6 Words related to Rectal Nova

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