Getting so much pussy from such a steady source (or multiple steady sources) with such minimal effort that it appears to simply flow forth like water from a showerhead.
"Hey dude, did you hear about Pedro?"
"Yeah, I heard he keeps hooking up with that hella hot chick down in 301"
"You heard right! He didn't even ask! She just thrust herself at him."
"Damn, that boy be getting pussy out the showerhead"