"Lupi-Lupi" is a word in HILIGAYNON

lupî-lúpì - To shake, sway, bend or flap to
and fro, said of thin, broad objects. Ang
manipís nga tápì nagalupîlúpì sa hángin.
The thin board is flapping in the wind.
Ginalupîlúpì sang hángin ang mga dáhon
sang ságing, lubí, etc. The wind is swaying
the banana—, coconut-leaves, etc.