Being so sleep deprived that you cannot function or speak properly, often results in embarrassing or humiliating situations that bring unwanted attention to oneself.
"Dude, look at that guy, he's so moonstoned he probably doesn't even know his own name!"
by epitomeofmoonstoned November 20, 2009
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A person who does not understand liberal politics but believes that being radically liberal is hip. Typically, moonstoners write nonsensical messages that appear to sound cool. Originates from message board poster "Mother Moonstone", who would paste ultraleft materials on message boards and, when posting on her own, would post misspelled, nonsensical phrases that would sound cool to the uninitiated.
Robert Plant moonstoned it when he wrote the lyrics to Stairway To Heaven; he did not know what the lyrics meant but knew that the moonstoners would try to ascribe some deep and sensitive meaning to them.
by J. Johnson June 30, 2004
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A teacher that is a sick fuck that doesn't know how to teach
Feiend1: Mr.Moonstone said women shouldn't be able to vote
Friend2: really?... he cused out my class

Another teacher at our school:he is probably getting fired, I dont like him either
by Student A and B November 1, 2019
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A young impish child that will appear in your chat unexpected, and who is secretly a Furry.
Did you see that? What was that? OMG it's that furry, the one called Moonstone!!!
by Ecto Master January 3, 2006
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a Moonstone is what you call a rock from the Earth's Moon.
Did you see that Cool Moonstone at the Space Exhibit
by Frederick Crummett February 23, 2018
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An American Transmale Tik Toker, who specializes in Markiplier ego Cosplays and comedic skits.

Tik Tok @CursedMoonstone
Do you follow Cursed Moonstone on Tik Tok?
by CursedMoonstone March 14, 2021
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Where Clan cats go to receive messages from StarClan in the series by Erin Hunter called Warrior Cats
In times of trouble, go to the Moonstone!
by Shajiui_Da_Black_Fox March 18, 2020
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