Top Definition
The theory whereby the more space between a females thighs (at its highest point) will result in minimal chafing and thereby a less sloppy protrusion from her female parts. Typically measured in inches, this space can be used to approximate the neatness of her vaginal parts.
Her fitness gap is easily a 2.5...Thank g/d for yoga pants
by Westjoker101 April 03, 2013

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