cochonnet
Cochonnet is a French word that is used to call the little ball that is used in the French sport "Pétanque". The goal of Pétanque is to throw heavy iron balls closest to le "cochonnet". In slang, we use it to call the part of the body between the vagina and the anus, because this is where the balls hit.
She was so horny that her cochonnet was wet.