chicken head
n.— «Golf-ball sized chunks of frozen snow on a trail are often referred to as death cookies in the East; Westerners tend to call them chicken heads.» —“Finding Uniformity in the Lexicon of Snow” by Barbara Lloyd New York Times Feb. 27, 2003. (source: Double-Tongued Dictionary)
Further reading
What’s it like to hike the Pacific Crest Trail all the way from Mexico to Canada? You’ll end up with sore muscles and blisters, and great stories to tell. Along the way, you’ll also pick up some slang, like NoBo, SoBo, Yo-yo and...
Sean in Oneonta, New York, says that when he was growing up in New Jersey, his family would pile in the car and set off on a surprise adventure, whether a short distance or long, and the kids would be told only that they were going on Buxtehude...