Like catching two grasshoppers; both of them escape.
“Nakep” is to catch something with the cupped had. “Leb” means run away.
The point here is that, in attempting to catch two grasshoppers, you may easily lose both of them. Whereas, it is not so hard to catch just one.
This is used to refer, generally, to the fact that, if you try to do too many things at once, you may not be able to do any of them. It is better to do just one thing at a time.
