chicken head
n.— «I could swear that I could make out some of my turns from the previous day preserved in ice. The snow that had fallen the night before was just enough to hide the frozen chicken heads from sight, but not hide them from your skis.» —“Live from Sugarbush—1/26/96″ by The Deuce Brothers Usenet: rec.skiing.alpine Jan. 27, 1996. (source: Double-Tongued Dictionary)