Deletion of Nader bell

Comment: as |neologism; other than one use of the phrase in the cited St. Petersburg Times article, all other ghits seem to be mirrors of Nader bell or Beep_(sound)#Use_in_transport, where the subject of an Audible backup signal can be adequately covered unless/until the section there becomes big enough to be spun off into its own article per ummary Style
Stance: delete
Cited policy: Wikipedia:Wikipedia is not a dictionary (WP:NEOLOGISM||WP:S)