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 like Facebook.
"Man, those Plutos on Facebook are right! I miss Pluto too!"
by Marvin the Martian January 17, 2007
Verb. to pluto someone or something is to downgrade, demote or remove altogether from a prestigious group or list, Like what was done to the planet of the same name.
he was plutoed like an old pair of shoes.
by Yoova August 24, 2006
No longer a planet. It was discovered in the 1930s and in 2006 they finally decide to change everything we learned growing up...im so confused now...
wtf! everything i learned went out the window, pluto isn't a planet anymore.
by Dr.Mario August 24, 2006
a big ball of methane and nitrogen that was big ballin' as a planet for about 80 years, until the IAU (International Astronomical Union) decided to get all technical and make that little bitch a "dwarf planet." At this point, it's a pretty safe bet that Pluto won't be getting laid anytime soon.
Pluto used to get invited to P Diddy parties back when he was part of the big 9, but now he can't even kick it with Polly Shore. What a a tool!
by MC Docky Dock August 24, 2006
1. somebody who has achieved promotion quickly at work, only for it to be obvious that they cannot live up to the job, and hence experience a humiliating demotion
2. a star -rock\pop etc - who is talked about a lot in the press as though they are the next big thing, but then never deliver the goods.
After the planet - which is no longer a planet!
1. hear about Smithson - last weeks new MD? Got fired, the asshole. He's a real pluto.

2. Pete Doherty is just a total pluto
by chris firth August 24, 2006
a poor little rock thingy in space that was tricked into thinking it was a planet, when... wham! some mean scientists told it the truth: it was a "dwarf planet" (which is some sick disorder that tiny planets are labeled with). i feel bad for the little guy.
"It's okay, Pluto. I'm not a planet either."- Snorg Tees
by Spyder Gurl August 23, 2008
Used to be the ninth planet in our solar system. Now it is categorized as a dwarf planet.
Pluto isn't a planet anymore?
by dillonleahy August 24, 2006
Verb: To be demoted for no good reason. Origin from the former planet Pluto.

The corporal got in trouble with the sargent, therefore, he was plutoed back to private.

by Buddy Man March 16, 2007

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