A phrase popularized by Britney Spears, frequently quoted in several of her songs. Very fun to say and make an inside joke out of, especially if your name is Britney.
Girl 1: What's that 1 girl's name? Is it Brandy? Brown?
Girl 2: No, I think it's Whitney. Isn't she a smartass?
Girl 3 (whose name is Britney): (walks over)it's Britney bitch!!!! (beats girls 1-2 up with a glare that Impales their worthless souls and kicks their vaginas)
Popularized but the infamous Britney Spears but can be used for many occasions, even if your name isn’t Britney. (WARNING: when using this term you may look super white and supercliche but sometimes you just have to)
Amelia, Mateo and SofÃa walk into a dressing room. Mateo and SofÃa wait outside while Amelia try’s on some clothes.
Amelia: *steps out of dressing stall dramatically* ITS BRITNEY BITCH
Mateo: wow that was an amazing use of it’s britney bitch to show us that you want to make a dramatic enterance while being snazzy and classy all at once.
SofÃa: go home Mateo