A different way of saying/writing the word bitch, it's just spelled as if it were being sounded out. It's also a quote used the odd time in South Park. Ex: kyle's mom.
"She is a bitch on Monday, Tuesday, Wednesday, and Saturday, but to be different, on Sunday, she's a super king kamaya maya beeeyotch." - kyle's mom
The person designated to pick up lunch by coworkers based on availability. An individual is more likely to be assigned sandwich beeyotch responsibilities if they are new to a company, straight out of college, or happen to be standing around with their hands in pockets by the time coworkers get hungry. Sandwich beeyotches are not limited to picking up sandwiches.
Hey, Phil isn't doing anything, let's make him pick up lunch. He can be our sandwichbeeyotch today.