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A "last lap" is the finishing touch on wiping your turd cutter when done dropping a huge smash. When you do your doo doo, you wipe the majority of the brown job with cheap toilet paper. But, what separates the men from the boys is when you throw down a "last lap", wiping your balloon knot with a baby wipe. Seriously, all the cool kids are doing it.
"Daaaaamn son! Your ass is stank! You better throw down a last lap while you're in there!"
by Pitou1093 August 05, 2017
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