A commonly used adjective used to describe degenerates and creeps usually residing in the city of North Battleford, Saskatachewan. Can also be used to describe places and things as well. Possibly a cross between rubbish and grubby. People from other cities usually don't know what the word means but anyone from North Battleford knows, and probably has used it at least once to describe someone/something. If something is really rubby, it becomes rubbiest. It can also be used as a noun.
"That guy was so rubby. He smelled like pee and sausage"
"This house is so rubby. It's falling apart, and is filled with garbage. It's the rubbiest house I've ever seen."
A completely worthless game where the sole action is rubbing your finger across your iPhone or iPad screen over a crappy, pixelized picture of a fatass yellow bird until your finger falls off, your screen breaks, or you realize what a douchebag you were for jerking off a picture of a bird in the first place.
People too broke to buy Old Milwaukee beer or Polish Prince Vodka. They are not to be trusted. You wouldnt trust `someone who knit all their own t shirts and underpants; the same logic applies.
He recycles vaseline after coitus for cooking oil. He is a rubby dub and should be condemned by the city.