Saying used as a substitution for saying masturbation. Commonly used by members of the UPCI organization. First used by a group of College and Career sunday school students at the Greenville, United Pentecostal Church
Randy chose to go Sitting by the fire instead of fornicating with Nikki.
Either liquid niquil or any liquid drink with melatonin, Ashwaganda or other sleeping aids in a liquid form. If warm tea helps you get to sleep that could be sleepy juice too.
I could not sleep so I chugged some sleepy juice and now I'm so tired and sleepy.