Short-Haired Porcupine

When a girl's hair down there stratches a clean-shaven guy's face, when he eats her out, the same way a guy's stubble would ussually stratch her part.

Can also be known as an Itchy Beaver, though that also has seperate meanings.

Gah! You're like a short-haired porcupine down there. My face feels like it is being scratched by wire.