"grubs" in the noun sense
1. chow, chuck, eats, grub
informal terms for a meal
2. grub
a soft thick wormlike larva of certain beetles and other insects
"grubs" in the verb sense
1. mooch, bum, cadge, grub, sponge
ask for and get free be a parasite
2. grub
search about busily
Source: WordNet® (An amazing lexical database of English)
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