from The Century Dictionary.
- noun A piece of grubbing or digging.
Sorry, no etymologies found.
After hours of drinking the night away, sometimes a little greasy food from a late-night grubbery is all any boozer needs to balance his or her tipsy footsteps.
While I understand your colloquialism indicates that my trunk won't be getting any grubbery, I'd like to point out that your double negative would otherwise suggest that I will receive this grubbery.