bear jam
n.— «The driver of the SUV stopped and jumped out, leaving the door open and blocking the one-lane road as he chased with his camera after the black furry figure ambling through a field of golden grasses.…“Bear jams”—or “bar jams” in local parlance—are common on the 11-mile, one-way loop road through the Cades Cove section of Great Smoky Mountains National Park, although rangers would prefer that you don’t block the road or hassle the wildlife.» —“Where there’re Smokies, there’s fun” by Tom Uhlenbrock St. Louis Post-Dispatch (Missouri) July 9, 2006. (source: Double-Tongued Dictionary)