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1 definition by Brandon "Sloe Vag" Geist

 
1.
MNS
To completely fail (brick) at something considered to be a basic skill - usually involving socializing of some sort.

I had an opportunity to score with two hot chicks tonight until I completely MNS'd it and wound up in the friend zone.
by Brandon "Sloe Vag" Geist May 08, 2008
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