The act of fingering vigorously hard until the finish. It often involves using four fingers extremely faster than usual. It is often referred to as "eXXXtreme fingering".
"Dude, you hear what he did to Christelle!"
"Fuck yeah man, there was some eXXXtreme fingering going on there!
"Man, Extreme Fingering can be an arm killer!"
by RvBlarg May 3, 2009
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