A more extreme version of the pump and dump, known as the anal sexplosion involves a high velocity expulsion of the mixture of lubricant, semen and liquid feces that accumulates in the colon during anal sex when the receiving partner isn't completely empty.
"Dude! You never told me you were a turd burgler!"
"I met this frat boy online one night and he wanted me to come over and fuck him, but it was a total pump and dump. I asked him "bro u know how to be cleaned out right?" But I only pumped his butt for like two minutes before he said "Stop bro that's it i gotta crap!" Bitch looked so funny running to the bathroom I had to laugh, so then he wouldn't let me fuck him anymore."
Ken: "What, is she like your girlfriend now or something?"
Chad: "Naw man, it was just a pump and dump scenario. I've got a date with Buffy tonight."
When a man has sexual intercourse with a woman, and then breaks up with her (if they are in a relationship) or never speaks to or makes contact with them again after the aforesaid act.
Ollie:- Yeah, I did that fit girl from Wells Hall. She was so good. She know's how to f**k.
Tom:- Did you get her number?
Ollie:- Naa, I just pumped and dumped her. What's her name again?
Tom:- You're such a man slag. You allways pump and dump
Maggie "Come one girl, drink tonight and just pump and dump in the morning"