Chernobyl bean Share definition Flag When someone does a very bad smelling fart -radioactive beans specifically- this fart could knock out a whole crowd Guy 1:Ewwww it stinks Guy 2:sorry I fartedGuy 1:Chernobyl bean ass Chernobyl bean by Squiggleclick. March 16, 2023 Get the Chernobyl bean mug.