Well, the blondes finally got together and got back at the brunettes. 
Here's their revenge :

 
What's black and blue and brown and laying in a ditch? 
A brunette who's told too many blonde jokes. 
 
What do you call going on a blind date with a brunette? 
Brown-bagging it.

What's the real reason a brunette keeps her figure? 
No one else wants it.

Why are so many blonde jokes one-liners ? 
So brunettes can remember them.

What do you call a brunette in a room full of blondes? 
Invisible.

What's a brunette's mating call?
" Has the blonde left yet? "
 
Why didn't Indians scalp brunettes?
The hair from a buffalo's butt was more manageable. 

Why is the brunette considered an evil color?
When was the last time you saw a blonde witch? 

What do brunettes miss most about a great party? 
The invitation

What do you call a good looking man with a brunette? 
A hostage

Who makes bras for brunettes?
Fisher-Price

Why are brunettes so proud of their hair? 
It matches their mustache.