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when you mature an extreme amount over a long period of time, often time there is a jurassic change in one's personality and behavior showing they have become more of an adult
Maddie: Wow don't you think Paige has really matoured lately?

Gabby: Yes I wish I could matour like that she is so mature and grown-up, I wish that one day I'll be able to be like that.
by pcorey494 March 04, 2011
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An immature big bear that isn’t mature but thinks they are.
I drank all of your water without your permission; I’m so ma-tour.
by Mrssmallbear July 23, 2018
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