nail Jell-O to a tree

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nail Jell-O to a tree

  1. (US, slang, rare) To do something that is impossible or very difficult, with connotations of pointlessness.
    They are asking us to nail Jell-O to a tree if they insist on having everything done in three days.

Usage notes[edit]

Also used in variant to a wall, and with jello in place of Jell-O. British form uses jelly instead. Particularly used in the form like nailing jello to a wall.