The phenomenon observed when the proportion of people in a group that are wearing leg-revealing clothing is sufficiently high that it appears that the reason for the gathering is for the people to discuss, celebrate, or simply show their legs.

This is commonly observed near clubs and bars on weekends, or midweek if you live somewhere cool.
Gertrude never joins the leg party, she always wears pants.

Let's go to the club with the biggest leg party outside!
by GiantFish May 19, 2011
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A leg adorned with random tattoos. Usually a tattoo enthusiast or tattoo artist.
I got a tattoo of my dog eating a cheese sandwich while riding a unicycle on my party leg.
by Chunkybeef December 3, 2012
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