His son, Stuart Mintz, says his father told Freed the "kids are rocking and rolling in the aisles to these records, but they won't buy them".Mintz helped Freed, then a humble sportscaster, secure a new show on the city's WJW radio in 1951, devoted to playing this underground music.Freed would coin the term rock 'n' roll - an old blues euphemism for sex - to describe the tracks.Using the on-air alias King of the Moondoggers, he would ring a cow bell, drink beer and howl in tribute as he played the records, while pounding out the beat with his fist on a phone book.