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when one takes a dump eats it and takes another dump that includes the previous dump infused with the secondary dump
by Double Dumper Joe July 31, 2011
I took a girl home last night who wasn't on the pill so I had to do the ole pump n dump on her back.
by The Real Wiz 76 July 16, 2016
Cornelius, did you happen to witness the massive log that Mrs. Jones excreted from her rectum?
Yes, sir. I would say that she dumps like a truck.
Quite.
Yes, sir. I would say that she dumps like a truck.
Quite.
by Nick April 14, 2004
by Sir Spankelot December 13, 2010
by mugatu123 September 10, 2006
While one takes a crap, another sits on the person's legs so they can shit between them. Therefore both can crap at the same time.
by Gihad January 18, 2008