Brown Nuke Share definition Flag A Fart so long and loud it's almost a shart and clears the area like the blast wave of a bomb. guy one: Wow that guy should eat less cheese, he almost shit himself.guy two: He set off a brown nuke. Brown Nuke by TG35 August 14, 2022 0 0 Get merch Get the Brown Nuke mug. Buy Now — $32.95 See more merch