Wiktionary
n. The consumption of urine.
Wikipedia
Urophagia is the consumption of urine, which is the liquid by-product of blood filtration in the body. There are various reasons that humans may consume urine. Urine was used in several ancient cultures for various health, healing, and cosmetic purposes, practices which are still used by some people of these cultures today. Urine therapy is a form of alternative medicine. Thai people had been practicing urophagia for a long time.
Other reasons for urophagia include attempting survival, if no other potable fluid is available, though numerous credible sources (including the US Army Field Manual) advise against it. Also, some people consume urine as a sexual activity, and members of at least one culture consume urine for ceremonial purposes.
Another use is occasionally found in the Middle East: tasting urine from a female camel to find if the camel is pregnant.