Top Definition
a minecraft player that is known throughout the servers with is best friends BuuR, Jaws777 and Ornage2. this is the guy you want to hang with.
BuuR: yo mentalthorn! come here bud!

Mentalthorn: Aight be right there!
by Zarkingu July 06, 2011
1 more definition
A minecraft player who is extremely full of himself, and even if you befriend him will probably end up stabbing in u in the back. He will also accuse u of hacking.
You:Yo mental!
Mentalthorn: U HACKER!
by smerfguy2 October 09, 2011

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