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
Sixte	-	French
Gerasimos	-	Greek
Aada	AH:-dah	Finnish
Maja (1)	MIE-ah (German, Polish)	Croatian, Serbian, Slovene, German, Danish, Swedish, Norwegian, Polish
Pyotr	PYOTR	Russian
Zdeslav	-	Croatian