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1.
1. The above definition is completley wrong and was written by someone who doesn't even know the true meaning of the phrase "Mache Out.

2. The actual meaning is too shocking, too scandalous, too immoral and too graphic for urbandictionary.com
Danny, Tom and Charlie all mache out wit eachother and Mish on a daily basis
by The Dirk Diggler August 22, 2006
 
2.
1.it means nothing joe just accidentally said it one day instead of make out.
2.To get a hand job, give a hand job, and make out at the same time.
max:hey ben lets mache out
ben:ok
by mik honcho himself August 12, 2006