An easily attainable meal, often leftover, consumed ferociously by a man or woman as soon as their date either leaves or falls asleep. Most common in the early stages of dating with those who are too shy to admit they need food during the date, or others who are having so much sex that they will die if they don't replenish the carbs immediately.
Person 1: "Hey man, why are you eating like that? You have food all over your face!"
Person 2: "Chill out dude, my date just left so I'm having my post-bitch snack."
A bitch snack is when you take your lunchable, crunch up the crackers cut up the bologna and cheese and you take that shit straight up the sniffer like a man. Don't be a bitch about it.
Person in a group of stoners who is elected to retrieve snacks for the rest of the group. A snack bitch is required at times when certain individuals get the munchies and are too stoned to get their own snacks.
A snack bitch should either be the sober person in the group, or the person who is best at remaining cognizant while stoned.
The snack bitch is usually elected by the majority vote.