union pipes
/ˈjuːnɪən pʌɪps/noun
A type of bagpipes, associated with Ireland, played held on the knee using bellows worked by the elbow; = uillean pipes.
Origin
Late 18th century; earliest use found in World. Apparently from Irish uilleann, genitive singular of uille elbow + the plural of pipe, after Irish píoba uilleann, with folk-etymological remodelling of the first element after union, perhaps arising from the pronunciation of the Irish word with a palatal l.