A container with "Expansion" cans of soda or beer.
I wanted to buy a six-pack of Coke, but the Expansion Packs were on sale, so we bought those instead.

How many sodas are in an Expansion Pack? Expansion, duh.
by someone_else_stupid April 23, 2011
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A package that helps you expand your penis by at least 69.11 mm
Can I have a Dong Expansion Pack please
by My2ndAngelic October 30, 2016
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