The term 'siren song' is a metaphor for an alluring and irresistible call. It originates from Greek mythology, where the Sirens were dangerous creatures that lured sailors to their death with their beautiful singing. The crossword solutions for the term 'siren song' are 'LURE' (4 letters) and 'WAIL' (4 letters). These words accurately describe the siren song, as they both refer to an attractive yet potentially hazardous call.