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The Louisville Lawnmower is performed by taking a length of anal beads (the longer the better) and fully submerging it in a girls anus, then placing your hand (palm down) on her asscheek and frimly gripping the string of beads with your other hand. Quickley removed said beads as if you were starting an old lawnmower
guy1: my mom said shes mad at you dude

Guy2: whys that?

Guy1: She said you gave her the Louisville Lawnmower last night.
by spc bean March 09, 2011
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