instead of paying with money you pay with your coochie

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.

When a male human does a good deed for a female, the female then owes the male “coochie credit”. Coochie credit means that the female is required to let the male sample her coochie.