pillow line
n.— «For most of the run, the camera is completely covered in snow as Douglas expertly launches from knoll to knoll. These knolls are called “pillow lines”—massive rocks that are covered with a ton of snow.» —“Heli of a way to reach the peak” in Mica Lodge, British Columbia Toronto Star (Canada) Oct. 14, 2007. (source: Double-Tongued Dictionary)
Further reading
Language is always evolving, and that’s also true for American Sign Language. A century ago, the sign for “telephone” was one fist below your mouth and the other at your ear, as if you’re holding an old-fashioned candlestick...
Sure, there’s winter, spring, summer, and fall. But the seasons in between have even more poetic names. In Alaska, greenup describes a sudden, dramatic burst of green after a long, dark winter. And there are many, many terms for a cold snap...