A female that typically falls into the leadership roll among other females. Much like a pecking order for social cliques, when two "alpha chicks" come into social contact, there is some aggressive posturing until one "alpha chick" reins leader. The loser "alpha chick" will then be ostracized from the social clique.
Johnna and Laura were both alpha chicks, but then they attempted to become friends, Johnna's will proved to be stronger and Laura was ostracized from the group.
by JoeNospam April 10, 2003
a fat person who encourages their friends to overeat with her, such they they all gain weight together.
I think she must be the alpha fat chick, since every work team she is assigned to gains tons of weight when she's on it. Does she bring donuts every day or something?
by No one cares who submits these August 30, 2007