Top definition
A portmanteau of moustache and mistake.

It's used because the two are diametrically opposed. Moustaches are very good, and mistakes are very bad.
Dude: Last night you were mackin' on that sea cow, what a moostake.
by Brink Dogg July 13, 2009
Get the mug
Get a Moostake mug for your grandma Zora.