Pick your favorite description
To eat, to masticate and digest food to please the hunger that dwells within.
Mike: "Hey Sam, where do you wanna go grub?"
Sam: "I dont know where i'd like to grub, I'm so indecisive!"
Mike: "I know... i know."
A dirty, uncouth person who does not have proper hygeine, often characterised by a low level of education, often engaging in disgusting behaviours and often associated with hardcore illicit drug use.
"Look at the grubs hanging around the Methadone clinic."
A person or people who crawls to management in a company and undermines other workers in the process for there own personal gain at the expense of others
Worker 1: "That grubby cunt from the West is in the office again crawling to the boss"
Worker 2: "I hate that fucking grub"