The published grammar of the Kalkatungu language of western Queensland has this entry in the ‘Weapons, tools, etc.’ section of the glossary:
‘pump’ (decoy device for attracting birds) kuɭumpu1 (Blake 1979:179)
‘What on earth is that?’ I said to myself, and wondered also why whatever it is would attract the English word for a fluid pumping device (let alone a type of footwear!).