Quote Originally Posted by kalinka_vinnie
Bravo, Friendy!
Thank you, kalinka.
Quote Originally Posted by Ramil
It's not a slang. First is just a comparison with cangaroo and hamster. Hamster is used to describe a person who stock things up to make a reserve for future use. Захомячить - means to conceal something from other people which otherwise could have been shared. A trait peculiar to hamsters.

Кенгуру - obviously a reference to some king of bag, where he had хомячил (stockpiled)something. (Food for example).
That's interesting, the interpretation that came to my head was different. Kangaroo is mostly associated with jumping in my mind and hamster with chewing. So I thought that he was jumping and chewing all the way.