grolar bear
n.— «DNA analysis has confirmed that a bear shot in the Canadian Arctic last month is a half-polar bear, half-grizzly hybrid.…Stirling says the hybrid has no official name, though locals have taken to calling it a “pizzly” and a “grolar bear.”» —“Photo in the News: Polar Bear-Grizzly Hybrid Discovered” by John Roach National Geographic News May 11, 2006. (source: Double-Tongued Dictionary)