Top Definition
The Nail Rating refers to the number of women you've had sexual contact with, and of that how many you have penetrated with your penis.

Formula: No. of full penetration/ (No. of full penetration + No. of sexual contact) * 100

The subsequent score must be placed into the following status: has a (score)% nail rate

N.B. Sexual Contact includes anything greater than a kiss but less than full penetration.
“How many girls have you slept with, in comparison to the amount you have had ‘sexual contact’ with?”

The other individual commented, “4 out 4, so 100%.”

“Woah, fuck me that is a good nail rating Null.”
by Tinterwob December 10, 2010
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