A fight between two people. Usually intense. Same thing as a bishfight, but spelt with the normal spelling.
Can be physical or verbal.
Maddy: Hey Steph, did you see that huge bitchfight between Nikki and Michelle? It lasted for all of lunch! They were really mad...
Steph: No, I didn't! Dang, I should have been there. Would have been funny. :P But I guess I'd feel sorry for whoever was on the raw end of the stick. Major de-rep points. Half the school wouldn't talk to her again!