Rougarou! Rougarou! Its Supernatural Season 4, Episode 4. Liz derails the pod trying to convince everyone to watch Cajun Justice, debatably the greatest cop show ever made, and talks about the Rougarou (Roux-Ga-Roux, Rugaroo, Rugaru, or Loup Garou).

Sources:

• https://visitcryptoville.com/2014/04/01/what-is-a-rougarou-exactly/
• https://sasquatchchronicles.com/into-the-unknown-the-rougarou/
• https://peachtown.org/legendary-monsters-of-louisiana-rougarou/
• https://cryptidz.fandom.com/wiki/Rougarou
• https://www.paranormal-encounters.com/wp/the-louisiana-legend-of-the-rougarou/
• https://peachtown.org/rougarou/
• https://mythus.fandom.com/wiki/Rougarou
• https://pelicanstateofmind.com/louisiana-love/history-rougarou-louisiana-werewolf/
• https://rutgersfolklore.wordpress.com/2018/04/30/the-rougarou/
• https://monster.fandom.com/wiki/Rougarou
• https://rougaroufest.org/about-the-rougarou/
• http://www.supernaturalwiki.com/4.04_Metamorphosis