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A merging of two popular phrases, each meant to reflect attempting something very difficult: “like nailing jello to a tree” and “like herding cats”. This version simply implies, humorously and a bit gruesomely, that one is, in fact, attempting the impossible.
John’s attempt to get this three kids to bed after they each ate a bag of Halloween candy is like trying to nail jello to a cat.
by Brett’s Brain April 23, 2018
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