A lashing is an arrangement of rope used to secure two or more items together in a somewhat rigid manner. Lashings are most commonly applied to timber poles, and are commonly associated with the scouting movement and with sailors.
This word usage derives from using whipcord to tie things together.
The structure of a lash is nearly the same with any type of lashing: to start, hold two poles in the desired end position. Start a timber hitch around one of the poles to secure the rope onto the pole (in the case of the stockgrower's lash, an adjustable grip hitch or tautline hitch is used, as a timber hitch can slip when the lash is opened). Start to wrap the rope around the poles (the wrap will change when different lashings are used). Once the rope is wrapped around the poles enough to be very tight, end with two timber hitches and one or two clove hitches.