What is Dumper Bumping?
1.
Dirty anal sex. It was first pioneered by the Gap Tooth Pirate, Cromer. Before ejaculation, the man pulls out and cums on the girl's face, because "she knew it was coming".
Cromer and Tiffany were dumper bumping in the locked room. I knew because of the grunts of pain from Tiffany and the stink of bunghole and sweat.
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A very harsh case of diarrhea where one will sit on a toilet for an extended period of time while what feels like flames shoot out of on..