station designed only for gasoline, taking shits in the bathroom, and nothing else (not even peeing)
by Dick Sunshine August 23, 2006

When you and your girl are banging and midway have to poop. So you are sitting on the toilet in missionary, pooping together. The Pump and dump.
by Catastrophic ASS Blaster July 30, 2016

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

by Tha bratz October 12, 2010

by Logofresh May 27, 2016

by koonmagic November 30, 2010

Steve: "Dude, pull over at this gas station. It's urgent."
Jeff: "Why?"
Steve: "I need to take a Pump 'n Dump. Bad."
Jeff: "A what?"
Steve: "Look it up."
Jeff: (searches Urban Dictionary) "Oh my god that is horrifying. People do this?"
Jeff: "Why?"
Steve: "I need to take a Pump 'n Dump. Bad."
Jeff: "A what?"
Steve: "Look it up."
Jeff: (searches Urban Dictionary) "Oh my god that is horrifying. People do this?"
by PriceIsRight November 24, 2013
