1) someone who is so very bitchy that you wonder if they have recently been butt raped 2) someone who does crappy, bitchy, and rude things to others for there own pleasure 3) a self-absorbed hoe-face bitch who needs to be shot in the nose
Teacher: "Now I know it is the last day of school, but we will be taking a pop quiz on all the things we have learned this year. If you fail this test you will have to take this class over this summer. Begin."
The phenomenon that occurs when you don't feed your girlfriend/wife who is generally a nice person. The bitch face mode can come on quickly. Please use caution. This can be caused by lack of food and bitch face can come on several times a day. More so during certain times of the month.
"Babe, if you don't hurry and cook dinner I am 5 minutes away from bitch face."
Female: I had such a bad day at work..
Male: "That's a nice story babe now go make be a sandwich before I get bitch face on your ass".