nail Jell-O to the wall

and nail Jell-O to a cross and nail Jell-O to a tree

phr. to do?something that is totally futile. (Jell-O is a protected trade name.) You’re wasting your time. Trying to get him to do that is like nailing Jell-O to the wall.

Common Names:

Name	Pronounced	Usage
Mikkeline	-	Danish
Klementyna	kle-men-TI-nah	Polish
Cornelia	kawr-NE-lee-ah (German), kor-NE-lyah (Italian), kawr-NAY-lee-ah (Dutch), kər-NEE-lee-ə (English), kər-NEEL-yə (English)	German, Romanian, Italian, Dutch, English, Ancient Roman
Narelle	-	English (Australian)
Howell	[hauəl]
Chun	-	Chinese