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An object from the Pokemon games that helps certain Pokemon evolve.
Nidorino + Moon Stone= Nidoking
Clefairy + Moon Stone= Clefable
Jigglypuff + Moon Stone= Wigglytuff
by Shawn B. October 19, 2003
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2
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 01, 2019
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3
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 02, 2006
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4
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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5
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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