I wouldn't accept local knowledge as a source in this particular case, considering 1) it's a sort of joky name, 2) it's hard to see why even local people would name such a short driveway, and 3) user making the edit is not quite reliable as before they have made edits like that in changeset/109640748.

If more solid source can be found for this kind of unofficial name then I'd rather use some other tag like loc_name=* for it, as name=* tag for roads normally holds official name.

Road names in Google Maps indeed often are unreliable but that's Google's problem. We can build more reliable map data here.

I notice bunch of other dubious driveway names have been added in this area, e.g. name for way/163744356 is likely name of the farm/cadastral unit not road name, and name for way/1175422960 is likely just made up. I think all such names should be removed.