look up any word, like fellated:

2 definitions by Isakilla

 
1.
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
 
2.
The trait of being too serious for your own good.
Relax buddy, you've got way too much seriousity.

Seriousity killed the cat, and by cat I mean you.
by Isakilla April 25, 2007