The potential a man has to satisfy you. Usually measured in inches of cock (to fill you with).
Joe had the best fill power I had ever seen.
by -= Hannah =- May 12, 2005
Can you define these popular missing words?
The amount of cubic inches one ounce of down occupies. The warmer the down, and the greater the fill power, the more space it will occupy. A fill power of 700 indicates that one ounce of down feathers will occupy at least 700 cubic inches.
by michael November 11, 2003