machine punner 

Derived from the term "Machine Gunner".
Someone who constantly makes bad puns. So many puns come out of his mouth so fast he could be compared to a machine gun. He'll have the whole party groaning after the fifth joke.
Ironically, "Machine Punner" is a pun off the term Machine Gunner

Little Brother: *pun*
Little Brother: *pun*
Little Brother: *pun*
Little Brother: *pun*
Little Brother: *pun*
Little Brother: *pun*
Little Brother: *pun*
Sister: Ughh, stop it! You're such a Machine Punner!

machine punner by guymanchester August 29, 2017

MachineGunner55 

A famous YouTuber who deleted his account known for New Minecraft Videos, LPs, his missing Peacekeeper, and his sexy voice. Sometimes he would collab with his Grampa ShadowGunner. His fans hope, one day, that he will bring back his channel and continue his legacy.

"Hello everyone, MachineGunner55 here, welcome back to a new MineCraft video!"

MachineGunner55 by FR33N0 T33N0 June 30, 2016

machinegunner 

Given to a man/woman who has the duty to pleasure two girls at once using his fingers making a machine-gun like motion whilst in the process.

WOW! that guy is a real machinegunner look at him pleasure those bitches

machinegunner by Maddog August 25, 2003