a dirty lying bitch. a person of the female gender who is immature and generally goes out of their way to bepassive aggressive and start unnecessary drama where it is not needed or welcome.
guy 1:Hey brah did you hear about jessica?
guy 2:Yeah dude, kirsten told me she fucked 10 guys
guy 1:What a nittywaggom, thats not true, she fell in the shower.
guy 2:Oh well shiiiit, that lying bitch.