A tone that some people possess where no matter whatthe content of the words they are saying are, they come across as being a complete bitch 100% of the time.
Me: I think I would like some Chinese food tonight.
Wife: You always want Chinese.
Me: Fine we can go where you want then.
Wife: No I’m fine with Chinese food, it just that is always what you want.
Me: I thought your were upset about, I forgot you have Permanent Bitch Tone (PBT).
A quote from Guns n' Roses. Fom their song "You could be mine" on the "Use Your Illusion II" album. Also found in the liner notes of their first album "Appetite for Destruction" (at least it is on the vinyl version, dunno about the CD).
Its basically the kind of thing you say to a chick or a guy who likes you, but you dont wanna know cause they like rap music and you like rock.