The point past midnight where someone starts talking jiberish just because the person is really tired and should probably go to sleep. It may seem like the person is high, but in fact, he/she just has a severe case of midnight jiberish.
"Why were you reciting Disney movies to me last night?"
"I was? It was probably midnight jiberish."
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.