It also means cock in the sense of what's more commonly (though less accurately) called a rooster (hens roost too). Coq au vin is a tough old male chicken cooked in wine, not a sausage dish.
or alcohol induced erectile dysfunction
Or “bit”, heavily used in computing, which sounds like the French equivalent of “cock”:
>> Bite » est une expression d'argot désignant vulgairement le pénis.