Masterflexing

The act of masturbating and taking a dump at the same time

I was masterflexing all over her before.

by Dethmaskxdivine March 5, 2011

cunt masterflex

some 1 who is a big ass twards u. or some who messes ur joke up

guy1:you check out my out my package

guy2: you mean your penis

guy1:no cunt masterflex i really ment my package from the mail

by willie boy January 30, 2008