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1.
to be demoted without due cause or reason
I was captain of the ship for one day, but then I was plutoed.
by DkLdAp December 12, 2006
 
2.
"to demote or devalue someone or something WITH considerable cause."

- from the root word pluto, a name of a former planet, which was demoted and designated as 134340,(dwarf planet) because it didn't meet its definition of a Planet.
An employeed was plutoed from his company, for his wrongdoings.
by CyberJake January 08, 2007
 
3.
"To demote or devalue someone or something, as happened to the former planet Pluto when the General Assembly of the International Astronomical Union decided Pluto no longer met its definition of a planet."

Does not inherently note whether the demotion was with or without cause. This is the definition provided by the American Dialect Society, who coined the word.
The US dollar has plutoed in recent years.
by RadSavage August 19, 2009
 
4.
To demean another to make them feel as though they don't amount to anything. As the scientists did to Pluto.
It's okay Pluto, I'm not a planet either.
Dude this guy hit on my girlfriend so me and my friends just plutoed him for the next hour.
by bye byeee August 11, 2008
 
5.
To get kicked out of a area, room, group, etc. Just like Pluto was kicked out of the solar system.
Megan got pluto-ed out of class for talking back.
by muddymidfielder July 27, 2009
 
6.
to be demoted of rank just like ex planet pluto

to be lessened in rank
Youve been plutoed
by Veggygirl714 August 20, 2009
 
7.
to demote someone WITH considerable cause
A 2LT was PLUTOED from RL1 to RL3 because he couldn't start the engines.
by Mike Hunt Jr. September 04, 2007