Flight to/from "LIMS"?

It seems that many private flights go to or start from “LIMS”, an airport in Portugal, except that they really don’t. My guess is that LIMS is an ATC shorthand for a limit clearance that gets an IFR flight to a point where they can cancel. Does this sound about right?

Welcome Brucer!

I don’t see any flights arriving or departing from Placenza Airport (LIMS).

My friend flies N11114 out of Monterey. There is no way his Bonanza goes to Portugal . . .

It must be a limit clearance, no?