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1.
The art of adding mental things. E.G something that you think would be crazy that you would do. or something u thought was crazy your mates did.

with anything that is entertainment.
so if your mate jumps over a car on his bike and u think it was mad but entertaining its metainment

you go base jumping its mentainment
by boxtalk May 28, 2009

Words related to mentainment

crazy entertainment funny mental ub