A pump-and-dump is the term for a "one night stand" from a masculine perspective; that is, quickly meeting then having sex with a girl followed by breaking contact with her without remorse. Slutty women are sometimes referred to as "pump-and-dump material". In the manosphere, the pump-and-dump is controversial because men naturally want woman to have sex with them easily but at the same time cannot respect a woman who gives up sex with next to no commitment.
It is advisable to take precautions when planning for sex with pump and dumps, including but not limited to, ensuring contact information is not exchanged and/or she does not know your last name since the risk of a false rape accusatibon is increased.
Woman who have been pumped and dumped on multiple occasions begin to take on characteristics of Thousand cock stare. More pump and dumps tend to wear heavily on the female psyche and instances of it are generally kept secret from her friends.
A pump-and-dump is nothing more than a one-time answer to a physical necessity, requiring no maintenance and a very low investment of time. It is the lowest rank of "relationship", lower even than fuck buddy.
Hit it-and-quit it