the refrain of comic songs, is a corruption of the Italian turluru, and the French turlureau or turelure. “Loure” is an old French word for a bagpipe, and “toure loure” means a refrain on the bagpipe. The refrain of a French song published in 1697 is-
Toure loure, lourirette Lironfa, toure lourira.
Saite du Théátre Italien, iii. p. 453.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894