Grubbayers 

(noun) An individual with grubby fingers who has devoted a bulk portion of his life mastering the craft of World of Warcraft.

There's Grubbayers right there!

Grubbayers by Xarol January 23, 2009

Grubberson 

Someone who takes part in the act of grubbing (i.e. chowing down, munchin, eating)

Yo my boy Simon is a grubberson, mans is goin to town on that Fil A right now

Grubberson by DJ Fat Cock April 24, 2021