Word used to describe left over food and food that inevitably escaped the mouth, also includes foods that may or may not have been placed there by owner of beard and food. Food particles and chunks are almost always visible to the naked eye and noticeable to everyone the beard owner comes into contact with.
"Bro I am so hungry you up for some food"?
"Nah man I've been munching on some beard grub I stashed away at lunch".
"Damn. I need a beard".
"Nah man I've been munching on some beard grub I stashed away at lunch".
"Damn. I need a beard".
by taypetes September 30, 2014
Get the beard grubmug. by Galonk April 3, 2022
Get the Grubbingmug. 
by Synixx January 12, 2021
Get the hella grubmug. A euphemism for masturbation.
by redgulp5 May 18, 2017
Get the Tug the Grubmug. The act of posting on Facebook and compulsively checking the updates to see how many likes your posts have garnered.
Areola is always posting crap on Facebook and she checks her updates every five minutes to count the likes. She is obsessed with like-grubbing!
by Untellectual October 9, 2011
Get the Like-grubbingmug. by redgulp5 May 18, 2017
Get the Grubmug.