So, to define "pumping and dumping": to pump and dump is to lead a girl on, making her think you want a long term relationship, having sex with her then breaking up right after.

Now, the meaning of "pump and dump" may vary according to who you ask and may or may not include casual sex but per the definition we're using casual sex is NOT pumping and dumping because there is a mutual agreement on the lack of commitment.

I know some girls who were pumped and dumped by their supposed boyfriends but i wanna know how common it actually is. Has any of you ever gone through that?