A barn bitch is a bitch who goes to the same horse back riding barn as you.

Barn bitches will want to take and ride whatever horse is your favorite and make them theirs, will bash your riding, and make up lies and rumors. Barn bitches should be approached with caution.
That barn bitch just talked crap about my jumping to my trainer! I can't believe her!
by equestrihonest October 3, 2014
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Also known as a she shed, opposite of a man cave. A hiding place for the female of the family and goes by several different names that change with the current attitude of it's owner.
Sheryl loves her she shed bud when she's on the rag we call it her bitch barn.
by MoFoBJ October 20, 2019
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