1. A medical term used to describe a child that was conceived by anal sex and/or birthed through the anal cavity.

2. A human so hideous that only an ass could have produced such a thing.

The act of extreme masturbation. You must "knock one out" whilst in close proximity to any of the following; Your mum, a nun, your boss, a member of parliament, George Michael. A person with capabilities to act upon catching you mid self-abuse obvisouly ups the ante. Ejaculation must be reached before your danger wank target comes (no pun intended) to investigate. The higher the chances of being discovered with one's pants down, pulling one's war face is obviously where the danger comes from. The more danger involved the harder (or softer) it is to complete the task in hand (snigger). The more dangerous the better. The chance of being arrested, pummeled by an angry father or having your hand severed by an arab's sabre means that you are a pro "Danger wanker."

One who was conceived by their parents anal sex, a small amount of cum drips into their vagina therefore creating the ass baby. This ass baby is inherently terrible at anything and everything that they do.

A very very large bowel movement

When a couple is having anal sex, and sperm drips from the anal cavity to the vagina, impregnating the woman.

a stool of such girth that it feels like giving birth

An assbaby is the product of a Male Pregnancy when the kid is delivered by the anus in a fanfiction story.