Granddaddy had the golden flask,
His grandfather had a golden drinking flask
People who have drinking flasks are generally considered enthusiastic drinkers at the very least, because alcohol comes in it’s own bottles, so if you have to decant it into an opaque flask and carry it around — maybe you have a problem.
Gold is also used in anniversaries to signify 50 years, symbolizing his grandfather’s long-term drinking problem, which points to the issue of alcoholism as being a long-standing problem (especially in Kendrick’s family).
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