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The ratio between how tan your ass is compared to how tan the rest of your body is. You want the ratio to be as close to 1:1 as possible.
Dude, hit the beach; your tanassity scares me.

Your tanassity is way too high

Haiku form:
Nice dark tan body
Your Tanassity is high
Chalk white ass and chest
by Isakilla April 25, 2007
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Sep 9 Word of the Day
the thing that you don’t have when you’re phones percentage is over 20
phone: why don’t you go to sleep tommy it’s 2 in the morning?
tommy:why don’t you die you dumbazz
by lik_frls_dis.me February 12, 2020
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