Definition of: grub

(grub) v. grubbed, grub·bing v.i.
1. To dig in the ground.
2. To do menial labor; toil: to grub for a living.
3. To make careful or plodding search; rummage.
4. Slang To eat.
—v.t.
5. To dig from the ground; root out: often with up or out.
6. To clear (ground) of roots, stumps, etc.
7. Slang To provide with food.
—noun
1. The wormlike larva of certain insects, as of the June beetle and most of the Hymenoptera. See illustration under INSECT
2. One who grubs; a grind or drudge.
3. Slang Food. [ME grubben. Akin to GRAVE¹, GRAVE².]