Grub v. i. [imp. & p. p. Grubbed p. pr. & vb. n. Grubbing ]
  1. To dig in or under the ground, generally for an object that is difficult to reach or extricate; to be occupied in digging.
  2. To drudge; to do menial work.
  grub
       n 1: informal terms for a meal [syn: chow, chuck, eats]
       2: a soft thick wormlike larva of certain beetles and other
          insects
       v 1: ask for and get free; be a parasite [syn: mooch, bum, cadge,
             sponge]
       2: search about busily
       [also: grubbing, grubbed]