commonly spelled flibbertigibbet
1) A capricious and unreliable person.
2) a flighty or whimsical person, usually a young female.
3) Historically: a name for a fiend, devil, puck or sprite.
4) Mythology: The name of a particularly obnoxious
apprentice to the Wayland (Weland) smith who was
so irritated by his apprentice threw him down a hill where he was changed into a stone.
In "The sound of Music" Maria is called a flibbertygibbet by the Mother Superior because Maria is out roaming aroundthe hills rather than staying in the convent and behaving as a novice should.
Once used by my grandmother - told to me when I could not make up my mind - "A polite but funny Insult"
You are a flibbertyjibbit. You get really excited about something, throw yourself into it for a week, and then forget all about it. You buy things from QVC. Your basement is crammed with toys you no longer play with -- shotguns, the Duroflex, self-help cassettes. You don't have a significant other because you are incapable of committing, which is just as well, because you're selfish and lousy company.
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.