What is rigor mortis rick and morty?

As an AI language model, I don't have any pop culture or entertainment information. However, I can provide some information about rigor mortis in general.

Rigor mortis is a postmortem change that occurs in the body after death. It refers to the stiffening of the muscles due to the chemical changes that occur after death.

The process of rigor mortis begins within a few hours after death and usually reaches its maximum stiffness by around 12 hours after death. After that, the muscles slowly begin to relax again, and the body returns to a more flaccid state.

The onset and duration of rigor mortis can depend on various factors such as the temperature of the environment, the cause of death, and the general health of the individual at the time of death.

While rigor mortis is a natural process that occurs after death, it is also often used as a forensic tool to help determine the time of death and to gather other important information about the deceased.