More or less a radiation of a girl's sex. It's a given ratio that tells you how big a slut and/or hot a girl is. It is measured by a number out of 100 of how many guys she would fuck in her radius over another number out of 100 of how many guys would fuck her in her radius.
A hot girl who gives out could have a laidiation factor of 80 over 90.

A busted girl who gives out could have a laidiation factor of 70 over 10.

A perfect 10 with a boyfriend could have a laidiation factor of 1 over 100 (because she only fucks one guy).
by James Belfer October 13, 2007
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