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1 definition by Jack O'monny

The sound that an above average in size penis makes as it hits something. Generaly, another person or some inanimate object.
"Lets get ready to rummble baby"
*pulls out penis*
*thwapt* (hits leg, near the knee)
*mst mst mst mst*
*pulls out*
*thwatp* (hits some surface, generaly bed)
*puts away*

*pat pat pat*
*cig, gets lit*
*puff puff*
*roll over*
by Jack O'monny October 22, 2003