The unfortunate and unintended side effect of two hairy men sitting next to each other and becoming permanently attached.
As a result of Male-cro, if Robbin Williams and Tom Selleck ever did a movie together, they would be unable to film anything other than sequels for the rest of their careers.
by Officer Villatreaux February 11, 2008
1 more definition
When 2 men's body hair come into contact with each other and they get stuck together. (One man is hooks and the other loops)
I was sitting on the porch swing with Chad when our legs touched and we got Malercroed together."Malecro"
by MrCantstandya July 21, 2010