Top definition
When a girl has a butt that is so small, that some consider it nonexistent.
Boy: Damn, that girl's back goes straight down to her thighs. That's a Pluto booty if I've ever seen one!
by R3BRTH March 09, 2014
Get the mug
Get a pluto booty mug for your friend Nathalie.

Available Domains :D

  • plutobooty.org
  • plutobooty.com
  • plutobooty.se
  • plutobooty.net
  • plutobooty.ninja