"A frog he would"

I remember, when a boy, to have heard an old aunt repeatedly sing this song; but the chorus was very strange. "A frog he would a-wooing ride, With a rigdum bullydimy kymy; With sword and buckler by his side, With a rigdum bullydimy kymy. Kymyary kelta cary kymyary kymy, Strimstram paradiddle larrabona ringting, Rigdum bullydimy kymy."