Loosely, any McDonald's employee.
That's McBitch to you.
Usually these girls look very high maintianence, will give a small smile followed by an eye roll if you acknowledge them.
grl 1: how come those girls wont talk to me?
grl 2: those snotty ones from the other stores?
grl 1: yeah...they look at me and laugh....
grl 2: dont sweat it.... they are some McBitches.