look up any word, like eight ball:
 
1.
Showing Off, For bravado, or for women (or both for that matter). posturing, or attempting to be the "alpha male"...
See:
flossin, floss, flexin', etc...
"There's some fine bitches up in here, i gots to start flexin the mexican, nah mean?"
by doug March 25, 2004