8
When all five fingers are either in the ass or the vagina (but not both, unless you are going for the double)and the person moves his/her hand in a rapid wiggling motion.
Last night I gave Hannah the ol' earthquake until she was loose like a senior citizen
by HannahKraus February 27, 2009
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9
When you put your ass during sex up against the females and you fart and shit on her ass it's called an Earthquake.
Last night James earthquaked Kevin.
by RickJamesbitch69bitch July 10, 2008
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