They want a girl who can keep up with their sarcastic remarks, and doesn't get upset when they are just kidding.
Sarcastic girls are also wanted because they can rip on anyone, and become well liked for being clever.
Sarcastic girls are extremely sexy and usually intelligent.
(girlfriend): "I'm breaking up with you!"
(Guy): "Man I wish my girl was a sarcastic girl and could take a joke...if only."