nail Jell-O to a tree

to do something difficult or impossible, especially when there is no real point in doing so

To eat a spoon full of cinnamon by itself would amount to nailing Jell-O to a tree. (example of nail Jell-O to a tree)

by The Return of Light Joker August 25, 2011

nail jello to a tree

the act of attempting something impossible.

Getting my girlfriend to give me head ,is like trying to nail jello to a tree.

by wslngy December 2, 2015