A word very valuable in situations where you are playing Scrabble and wish to temporarily infuriate your opponent with your apprent complete disregard for the simple dictionary-based rules of the game, only to have them remark in your favour with a certain astonishment when they discover it really is a word.
"syzygy?! That's not a word!!"
"It is so! Go ahead look it up!"
"Alright..." (time passes as opponent flicks through the dictionary) "... God damnit..."
The near perfect linear alignment of 3 or more celestial bodies (as in the sun the moon and the earth during a solar eclipse) in a gravatational system.
A total-harmony state achieved by a group of meditation-minded "in tune with the power of the Universe" hippies while engaged in perfectly-in-sync cutting/trimming of paper/fabric with "syzzors".
Performing syzzygy with your weed-puffing buddies can indeed be relaxing, but your hands gettired fairly soon from all of that synchronized snippin'.
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.