sing-jay
n.— «At 6 1/2 skinny feet, Eek-a-mouse is as imposing as his name is entrancing. One of Jamaica’s top performers and personalities, he’s a prime practitioner of a reggae style that’s come to be known as “sing-jay,” combining toasting (Jamaican-style rap) and singing in an elastic scat format that encourages a lot of rhythmically compelling and texturally impressive vocal embellishments.» —“The Startling Eek-a-mouse” by Richard Harrington Washington Post May 18, 1984. (source: Double-Tongued Dictionary)