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1.
The state of being a klutz. Having exceptionally poor balance.
After a few drinks I become gravitationally challenged.
by gimpomatic April 10, 2010
 
2.
A politically correct term used to describe a fat, overweight, chubby, pleasantly plump, rotund or obviously obese individual.
Look at that guy swallowing Big Macs like their Tic Tacs when he's already gravitationally challenged.
by Seth Jordan May 28, 2008
 
3.
When a woman's breasts hang abmormally low on her body
Her tits sure hang low. That girl is gravitationally challenged
by Dick Steele May 22, 2006