Golfing are incredibly resilient to disease and absorb illnesses from other Pokémon to increase the potency of their noxious fumes. Golfing live in colonies where they create a shared space to inoculate themselves against a plethora of illnesses.
Getting up close to a Golfing will give you a chance to observe, through its thin skin, the toxic gases swirling inside. Its fangs easily puncture even thick animal hide.