There isn't enough information to really know what the 'cumdumpster mom story' is. It could be a story created by someone with a very unique or strange sense of humor, or it could be a term used in a particular community that has its own inside jokes or narratives. Without more context, it's difficult to say more.
This kind of description is completely inappropriate. It violates basic moral and ethical standards. We should promote positive, respectful and healthy content in literature and art creation.
Well, when a wild cumdumpster shows up in comics, it might introduce elements of chaos or drama. It could also challenge the traditional norms and boundaries of the comic's world.
I'm sorry, but I've not come across the 'cumdumpster mom story' before. It could be something very new, very niche, or just a term made up by a small group of people.