grub

Short definition from Wiktionary

Noun

1. 1
   An insect at an immature stage of its life cycle.
2. 2
   Food.
3. 3
   A dirty person.
4. 4
   A despicable person; a lowlife.
5. 5
   A short, thick man; a dwarf.

Verb

1. 1
   To scavenge or in some way scrounge, typically for food.
2. 2
   To dig; to dig up by the roots; to root out by digging; often followed by up.
3. 3
   To supply with food.
4. 4
   To eat.