like nailing jelly to the wall

if something is like nailing jelly to the wall, it is impossible to understand or describe it exactly Writing a history of the period is like nailing jelly to the wall.

Common Names:

Name	Pronounced	Usage
Jiang	-	Chinese
Modesta	mo-DHE-stah (Spanish)	Spanish, Late Roman
Colwyn	-	Welsh
Remigio	re-MEE-jo (Italian)	Italian, Spanish, Portuguese
Ctibor	-	Czech
Neta	-	Hebrew