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The insertion of ones penis into a females rectum without her knowledge or permission. When she begins to buck and attempts to throw the rider he removes a pillow case from a pillow and proceeds to use it as a bridle and ride her like a guatemalan racehorse.
I pulled a Guatemalan Racehorse on her last night so she is still not too happy with me.
by Dr. Fergie Christ January 01, 2011
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