I. grub 1 /ɡrʌb/ BrE AmE noun
[ Date: 1400-1500 ; Origin: Probably from ⇨ ↑ grub 1 2; in sense 1, probably because birds eat grubs ]
1 . [uncountable] informal food:
Let’s get some grub.
2 . [countable] an insect when it is in the form of a small soft white worm
II. grub 2 BrE AmE verb ( past tense and past participle grubbed , present participle grubbing ) [intransitive always + adverb/preposition]
informal to look for something on the ground or just under the ground, especially by moving things around:
Jake got on the floor and grubbed about under the desk.
grub for
chickens grubbing for worms
grub something ↔ up/out phrasal verb
to dig plants out of the ground:
Farmers were encouraged to grub up hedgerows.