Some women who work together sometimes share Flow cycles. Some men who go to bars sometimes find themselves going to the bathroom at the same times as other men. This will happen a few times a night. Complete strangers will continue to meet up in the bathroom at the same time. Like clockwork. Three to four times during the night. This phenomenon is called having the same pee-schedule or pee-cycle. Certain men with similar bladders and drinking habits will share pee-cycles, and sometimes refer to themselves as pee-buddies.