The act of urinating inside of a vagina or anus during intercourse, similar to pumping gas or fuel into a vehicle, Jerry can or other gas/fuel storage device.
"Bro, this chick I picked up last night was hella freaky. She couldn't get off until we started fuel pumping."
"I'd love to give him a real good fuel pumping, if you know what I mean."
When a man has to pleasure two women, so he puts a double ended dildo in his anus so he can pleasure the other woman on his back-thrust.
"Dude, I had to fuck two girls, but I also needed my anal fix, so I gave them ye olde Saskatoon seesaw."
When you suddenly take a girl's anal virginity without her consent, whilst yelling "Ooh, it feels like some anal"
"Dude, you got kicked out again?"
"Yeah, I gave Gwen the Shania Pain and she changed the locks."