five head
n.— «The banter later switched to a discussion of who has the highest forehead, as measured in ordinary soup crackers. One and a half crackers is a high forehead; two crackers is next to bald. Henke was accused of having a “five head,” but had an answer for that. “I just have a tall face,” he said.» —“Crib and crackers diversions for Jays” Toronto Star (Canada) June 16, 1987. (source: Double-Tongued Dictionary)