tank
n.— «The caddies work six days a week, assigned at “the bench” above Sankaty’s parking lot. Carrying one bag—a tank in camp parlance—nets $70, in addition to a tip that averages about $20.» —“At Camp Sankaty Head, Young Caddies Learn to Carry That Weight” by Stacey Stowe New York Times July 22, 2009. (source: Double-Tongued Dictionary)