noun. from the Latin prefix "head" meaning "body part" and the suffix "touching time" denoting a commonly accepted time where in which one may touch the heads of others in the area along a straight path. Used to denote the opportune time in which one may touch heads, created by Dano Mckenna in the late 90's.
The thoughts that sneak into your head as you try to go to sleep. They are usually negative, irrational and exaggerated, but feel oh-so-real at the time.
In the morning you often can't even figure out what you were worried or angry about.