adj. derived from the hyperness of Jone which is basically the mix of the words crazy and nut...used when you're at a loss for words and can't think of a description to call a certain weirdo you're talking to

A pubic hair piece. A toupee for the pubic area/genitals. In the 1700’s when mercury was used to treat sexually transmitted diseases (Gonorrhea or Syphilis) one of the side effects was the loss of pubic hair. To disguise this condition, that was not cured by mercury, a Merkin was employed.