The number of fingers - to the nearest whole unit - in which a woman's vagina can facilitate.

Coined by four intellectuals in 'Top Spoons' Lancaster.

22/03/2014
"Met a girl last night, she had a maximum finger capacity of 2. But as the night progressed it increased to 3."

"Caroline has the perfect MFC of 3"
by LancasterGary March 23, 2014
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