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1.
A shrink wrapped pile of cash. Typically seen in casino cages and generally consisting of 500 or 1000 twenties, fifties, or hundreds. Common green twinkies contain $10,000 or $25,000 while more desirable twinkies can contain $50,000 or $100,000. Green twinkies are commonly seen on television and in the movies and are usually seen used to transact some kind of business or transferred between friends. ie. Drug dealers and Mafia bosses and the like.
Did you see what Shirley gave Phylis?

Looked like a big green twinkie.

I just love twinkies.
by nick April 15, 2005
 
2.
A green twinkie is simply put a big wad of cash. And nothing more
I'm hungry for a green twinkie
by DizzyLizzy February 15, 2007