The phrase is applicable to perverts and soap dodgers alike, and gold diggers and keen aficionados of pocket billiards were not spared. At a certain age level, a simple conversation with a member of the opposite sex might draw moral judgement in this poetic form.
A crucial and noteworthy point is that in some inexplicable reversal of this logic, anyone wearing any article on their personage that betrayed a primary hue of yellow received the same treatment regardless of whether they were engaged in nefarious activities or not, or bathed and powdered and smelling like mallipoo or not.
Shomu: Got jaundice da! Damn bad...
Ramu (snickering): "Yellow yellow dirty fellow!"
Shomu: (belts him one)