8 letters · 13 points in Scrabble
noun any of several herbivorous leaping marsupials of Australia and New Guinea having large powerful hind legs and a long thick tail
originBorrowed from Guugu Yimidhirr gangurru (“eastern grey kangaroo”). Despite a popular misconception, the Guugu Yimidhirr term does not mean "I don't know".
Etymology from Wiktionary, CC BY-SA 3.0