a person who is mischievous and has unclear intentions, a dirty child, someone who is unkept and drops crumbs while making eye contact
Look at Zach over there in his cutoff spongebob pajamas, what a grub.
A person that is dirty and lacks proper hygiene
Do you know that girl Meg? She hasn’t showered in a week, she is a real grub !
Grub is a just a good way to say “food” and that’s all the definition you need, I mean, how else can I define this?
Person 1: Hey wanna get some grub?
Person 2: Ok
Australian slang for idiot, asshole, dickhead or moron.
Can be used in video games when someone steals your loot or steals your kills
You stole my kill, you dirty grub!
Come revive me you absolute grub!
You dirty grub, you took all the ammo!!!