While sometimes regarded as a "Side-Effect" of drinking PowerThirst, it is, in actuality, a Crystal Meth induced ability to Emit, or Blast Out prismatic Cheetahs/Leopards (depending on the user, and extent of use) from the Chest or Groin regions.
The Many-Colored Felines travel with such force that even Andre the Giant would have no Hope of withstanding the Impact.
The act of thrusting your hips forward and "blasting" a rainbow-colored leopard from your chest. Hump-Catting can only be performed after having drunk a Powerthirstenergy drink.