1 definition by Marvin the Martianette

Top Definition
Plutos are the growing number of pluto (yes, the planet) sympathizers post-rejection from the IAU. These include people who grew up thinking Pluto was a planet and don't think it's fair to pick on the smallest planet in the system. Plutos mourn their loss together mostly over the internet in online forums.
"Man, those Plutos are right, I miss Pluto too!"
by Marvin the Martianette January 19, 2007

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