Definition of grubbed:
(n) :
(uncountable, slang) Food.
(n) :
(countable) An insect, especially a beetle, at an immature stage of its life cycle.
(v) :
To scavenge or in some way scrounge, typically for food.
(v) :
(ambitransitive) To dig; to dig up by the roots; to root out by digging; often followed by up.
(v) :
(slang, dated, transitive) To supply with food.
(v) :
(slang, dated) To eat.