peck

This is very similar to head 头 so I think of a big lopsided, DOUghy (dou) head that is 3 pecks in size (it is leaning to the left). "Dou is a Chinese traditional unit of volume equal to 10 sheng or 10 liters." - http://www.conversioncenter.net/volume-conversion/from-dou-(Chinese-volume)-to-peck-(U.S.) by gisjedi