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1.
A leatherback is a woman who has extremely masculine and broad shoulders with the skin of a reptile.
Wow! Chyna from WWF really looks like a leatherback in that tight outfit.
by O.G. Smiley August 05, 2009
 
2.
a term used to describe an easy girl, as she is always on her back.
that girl is a nasty leather back
by loz February 07, 2005