taco fingers
When you insert your fingers into a woman's vagina in preparation for oral or traditional sex, and she is either just beginning or just ending her period. The woman will likely have a tangy smell to her vagina and some crusty goo as well.

When you pull your fingers out, after some good deep penetration, you find that there is clotted blood, fungus, crusted cheesy creamy goo and small hairs all over your fingers. The combination of these substances on your fingers resembles having run your fingers through a warm ground beef taco, cheesy enchilada or bean burrito.
I had my girl so warm and wet, ready for me to pop her good, but when I pulled my fingers out I had the chunkiest Taco Fingers ever! No fear thoough, I wiped them off and hit it good. Andalay!

Andalay Puta!