A "truckle" of cheese refers to a cylindrical wheel of cheese, usually taller than it is wide, and sometimes described as barrel-shaped. The word is derived from the Latin trochlea, 'wheel, pulley'. Truckles vary greatly in size, from the wax-coated cheeses sold in supermarkets, to 25 kilogram or larger artisanal cheeses.
References
Truckle Wikipedia(Text) CC BY-SA