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.
by Alan344 September 8, 2009
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1. The thick wormlike larva of certain beetles and other insects
by Anonymous November 23, 2002
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1) n. Synonym for food.

2) adj. descriptor for delightfully tastey food
1) You hungry? Let's get some grub.

2) This pizza is fuckin' grub, dude.
by Big Tim September 24, 2003
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A person who seeks what they see by insistent solicitation and entreaty. Characterized by some presumption that they have a right to possess what they see even if it is yours. A grub will often consistently nag you if they really want what you got. Sometimes the only defence to a grub is to tell them to get the hell away from you and to get their own.
normal person: Hey check out my new Mickey Mantle baseball card.
grub: Can I have that?
normal person: As if! You aren't serious are you?
grub: I thought you didn't need it.
normal person: Why?
grub: I thought you wanted me to have your baseball card.
normal person: What are you nuts? If I didn't need it I would sell it.
grub: No, I just thought you were being nice, besides c'mon what good is that card to you.
normal person: Just stay the hell away from me.
normal person: Get your own!
by nick February 11, 2006
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The female reproductive organ according to Australian Minister for Education Christopher Pyne.
You're such a grub!
by stevieboy11 May 16, 2014
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a person who is an overall cheap ass, unable to pay for other peoples expenses yet alone their own. generally unclean, smells bad, wears same clothes for days on end, showers on an annual basis.
David Mickleburgh: I've got 5 cents to spare, whos gonna buy me food and some new clothes

Person 1: Youre such a fucking grub
by muckface fcgeezacks September 19, 2009
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