Pump shark 

one who goes to the gym to talk rather than work out. A pump shark will continually walk up to people who he/she senses are have a good work out. The shark will then stroll up to that person and talk their ear off until they have effectively taken away the persons pump, hereby killing that persons workout for the day.

jake: Im going to get a great pump in today!! I can't wait to get to the gym and get my swoll on. You wanna go around 3?

Timmy: Man, if you want a get a good work out you better put your head phones on and stay away from that fuckin pump shark thats always there around that time.

Jake: Fuck that lets just go to the other gym so we don't run into that guy

Pump shark by Nuke85 November 7, 2010

pump slugs

To shoot (bullets) at or into a person.

If I ain't get my loot by Wednesday I'ma start to pump slugs at ya dome.

pump slugs by mVal September 14, 2006

pump some iron 

To workout your muscles.

C'mon let's go to the gym and 'pump some iron'!

pump some iron by CRAV February 14, 2014

pump ship 

1. to urinate(crude. From the expression that refers to pumping the bilge water form a ship.)

2. to vomit(crude. Less well known than sense one.)

I felt like my bladder would burst If I did not pump ship soon.

pump ship by Light Joker April 19, 2005

pump some rump 

Anal intercourse.

"Jake likes to pump some rump."

pump some rump by x January 31, 2003

Pump Shotgun

A gun in the game called "Fortnite". The amount of damage the Pump Shotgun does depends on the rarity of the gun. The most a Pump Shotgun can do to the head is 220.

Garry: "Yo wtf is this game? I got one pumped by this guy!"
Harry: "That's because he had a Pump Shotgun."

Pump Shotgun by Gatelotzombie January 5, 2021

Two pump surprise

Ejaculating after 2 thrusts surprising yourself and/or your partner

We did have sex but i gave her the two pump surprise

Two pump surprise by 2PS May 30, 2019