1 definition by Sophie_Fatale
coined from the hit movie "Mean Girls" by the excellent actress Rachel McAdams. It can mean many things, either friendly or non. Mostly used as a greeting, or as a burn, bitch.
Jeanean: "Hey Kylie!"
Kylie: "Boo you whore! what are you up to girl?"
Geneva: "I'm so upset! My boyfriend David broke up with me!"
Olivia: "Boo, you whore-- get over it!"
Barbie Barbara: "Damn, I'm hot in my A&F jeans."
Emo Emily: "Boo, you fucking whore! Get over yourself, cake face!"
Kylie: "Boo you whore! what are you up to girl?"
Geneva: "I'm so upset! My boyfriend David broke up with me!"
Olivia: "Boo, you whore-- get over it!"
Barbie Barbara: "Damn, I'm hot in my A&F jeans."
Emo Emily: "Boo, you fucking whore! Get over yourself, cake face!"
by Sophie_Fatale January 3, 2007