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".
by taypetes October 1, 2014
Get the beard grub mug.
Getting an erection or being turned on while eating.
Man! These oysters are giving me a Grub Chub
by Hey rissel August 12, 2021
Get the Grub Chub mug.
A gramma that was a stripper as a little kid and mostly was at Dover air force base.
by May 16, 2022
Get the shirley grub mug.
The action of begging your professor to round your grade up, usually done during final exam season. Usually done by people who don't actually deserve it.
Becky: Professor, can you round my 54 to a 90?
Professor: I do not round grades up. How about studying instead of grade grubbing?
by Pialinist May 1, 2023
Get the Grade Grubbing mug.
I had a day off so my ol' lady woke me up to grub and tug this morning, then I blazed some chronic and went back to sleep.
by Timmy Neutron Squared January 18, 2016
Get the Grub and tug mug.
Guy 1: Man, did you see that sweet triple back-flip I just did?

Man: Dude, that was grub-street.
by IDLsT November 6, 2013
Get the Grub-street mug.