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1.
An insult used to describe someone as clumsy, awkward, or totally useless. (imagine someone with manatees for hands, pretty useless huh?)
You can't do shit you damn manatee hand. OR Dude, I wouldn't let that guy operate on you he's got friggin' manatee hands.
by haMMiE February 04, 2004
 
2.
A word that can be used to described one's hands after the act of heating another man's testicles in cupped hands.
Justin had some crazy manatee hands, after heating Eric's balls.
by Will March 03, 2004