Mo Sista

A mo sista is a woman who supports the Movember cause by getting other guys to grow out their mustaches, raising money, and just plain loving mustaches. A mo sista can be just as effective as a mo bro in raising awareness even though she, most likely, can't grow a mustache as well.

Being a mo bro can be challenging, especially if he is plagued with patchy facial hair. But having the support of mo sistas can make a world of difference. The importance of a mo sista should never be understated.