A lubricant used to assist in medical and obestric prodecures involving farm animals, comes in a powdered form. Water can be added to make the lube slippery while various amounts can be added to produce the desired consistancy. Also used in sexual acts when excessive lubrication is required, such as anal fisting and insertion of large toys into the anus.
I Filled an enema syringe with J-Lube and filled my ass with it before being fucked hard in the ass by my dog's huge cock.
Fucking in a tub of J-Lube is an immensely erotic experience