1. When you give a nice feel or tap to a woman's vagina either sexual or not sexual.
2. When at a bar, you move your arm in a downward motion, and instead of swinging at air, you get a nice handful of a random woman's vagina.
1. I gave Becky a Muff Tap last night, and I really think she liked it. Tomorrow I might go to the next step, and give her a Polish Windmill.
2. I was slapping my friend five, but wound up to hard and gave some toothless, child support-surfing mamma a muff tap at the bar last night.