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when something is absolutely insane, or just down right gnar.
That barrel was straight up mental
by Jote September 28, 2005
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Feb 26 Word of the Day
Commonly used in text messages or social media as a short form for Very Sound Advice.
Mate 1: Hey, I'd be careful risking all that money on one bet. Only risk what you can afford to lose.
Mate 2: Thanks. VSA
by Sexucator February 08, 2021
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3
meaning someone who is silly or stupid, usually for attention and in a random or sporadic way, involving nonsensical references and actions. usually violent or quick action involved, resulting in general amusement and hilarity of onlookers.
"hey look, archie's jumping off that cliff while holding a banana!"

"wow! he's mental!"
by arto October 11, 2005
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4
An adjective used to describe something pertaining to brain activity that is now used by gen z as a noun.
"I have been practicing a lot so I just need to work on my mental."
"We just need to make sure our mental is strong."
by _(N0S)_ May 13, 2019
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5
mentally-challenged; retarded; needs psychologic help
that dude's mental because he fucked his own sister.
by mentallyyyy May 17, 2003
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6
Usually one with a mental disorder.
Including anxiety disorders, personality disorders,eating disorders, and much more.
Usuaully used as "crazy"
Joe: That hannah in MENTAL!
Tom: what, does she have some eating disorder?
Joe:what? She's just flat out crazy..
by mabbymab December 13, 2009
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