Top Definition
Used by women to judge penis size of a prospective partner before actually getting down to business.

Fold the middle three fingers down and spread your thumb and pinky as far about as possible. This is your ideal "wing span". Anything less is unaccpetable.
"When you were making out with that Canadian, did you he pass the wing span test?"
by mememe626 November 18, 2009
5 Words related to Wing Span Test

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