Mulher Fica Engatada Com Cachorro Que — Nem Cadela ((better))

The phrase "mulher fica engatada com cachorro que nem cadela" translates to "a woman gets stuck with a dog that isn't even a bitch." This statement seems to suggest a situation where a woman is involved or associated with a male dog that is not in heat or not a female dog, implying an unusual or perhaps problematic connection.