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1.
A non-offensive description for a human posterior.
Boy, isn't that girl's tuckus hot?
by Rob August 07, 2003
 
2.
A mispelling or alternate spelling of the Yiddish word tuches meaning buttocks, butt, backside, bottom, posterior, ass, rear-end, booty.
She slipped on the ice and landed on her tuckus.
by I shouldn't know these things February 24, 2008