"Six pack" is an expression used for a group of canned drinks that are sold together. The cans are most commonly held together by plastic rings.
How It's Used
“The first time I came to New York, with the Kinks, in 1965, we stayed in the Hilton...I was too intimidated to go out. Everybody went out and partied, but I stayed in. I got my six-pack—well, they weren’t six-packs in those days—I got my crate of beer and just drank.”