Top Definition
While holding the base of your penis to enlarge the head, insert it into the anus of a female. Then pull out and slap her once in the ass. Then insert it again, pull out, and then slap her once again. Repeat this process as fast as you can until you are satisfied with the results.

This is not to be confused with the Florida Swamp Slinger
I was making so much noise last night when i was performing the "Indiana mudshroom slap" i did 72 in one minute.
by thatonebro March 11, 2011

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