proper noun. (Ploo'-tun) also (Ploo'-tahn); A member of a proposed category of planetoids (Plutons) being politicized by pseudoscientist geocentrist committee members of the International Astronomical Union in a conspiracy to eventually strip Pluto of Planetary status. Etymology from vulgar Latin, Pluton, the Roman equivalent of Hades, and still contemporary name of the ninth planet in Spanish.
Recently, Caltech scientists believed they had discovered larger Plutons than Pluto itself. Three of the largest Plutons are pending names though have been informally christened Xena, Santa Claus and the Easter Bunny. Desk astronomers are working 9-5 a decision of whether they are "planets" or simply Plutons - and whether a Pluton is a planet or not.
by MexicoDoug August 17, 2006
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Adj: A one-sided relationship that not only fails to ever get romantic, but that manages to get you publicly humiliated in front of your peers when the object of your affections openly dates someone else.

from: "platonic" and the demotion of Pluto to dwarf planet status.
student 1: Hey, WTF? Isn't that your girlfriend smooching with the captain of the football team?

student 2: Yes, Betty and I have a plutonic relationship. She respects my mind.

student 1: Sure, you sorry-ass loser!
by KatieOh! September 12, 2006
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An adverb used by a man/woman to emphasize that it is not love/relationhip as in boyfriend and girlfriend but a friendly or normal love, as in don't hate you but I'm not in love with you either. Eg. Do you love Johnny? Well, yea, I just love him plutonically.
Do you love Naomie? Yes, like plutonically, I mean I love her as a friend.
by jonDon January 13, 2015
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A penatration-based sex act so warped and craven that it is "of Pluto", i.e. beyond anal. Although "plutonic" does not refer to any specific act, it could include such acts as ear sex, removing someone's glass eye and having sex with the empty eyesocket, sex with a colostomy stoma, an esophagal stoma, or stab wound.
John and Kim's relationship progressed quickly - on Wednesday they were platonic friends, on Thursday afternoon they were fucking, and by Sunday they started getting into some plutonic shit.
by Johnny Panic February 19, 2008
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A non-sexual relationship between a man and a woman that could /should only work in outer space.
After mastering artificial gravity, faster-than-light travel, and building this colony on Pluto, it's really easy to just be friends with hot chicks in a totally plutonic way.

Honestly, baby, I'm not cheating, me and Jennika are just plutonic friends!
by YattonMan March 25, 2008
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temporary relationship, be it emotional,personal,marital, financial... that could happen to somebody somewhere in this planet.
Her love towards Jim was plutonic.
by Utnip September 13, 2006
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I can not see those Plutonic plates right over there.
by Sabian June 3, 2004
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