libu·libu·´whistle of any kind; or more specifically, a two-toned whistle of elderberry or bamboo used in ceremonies4.2.3.5Musical instrumentduwi libu·comp.duwi líbu·a constellation: the Belt of Orion?*libutverb.libúʔwhistle once (with an instrument or the mouth)cf*sisutpl.*libutadlibutá·du