drop bear

noun

Australian jocular a mythical creature said to live in the outback; it resembles an oversized koala with sharp teeth and drops from trees to devour unwary passers-by

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012