When a girlfriend or wife gets pregnant and decides (without any input from the male) that she is keeping the baby. A common theme is that the female tells the man that she is taking contraceptives when she knows she is not.
Usually done as a way of keeping a relationship going when there have been signs that the partnership may be coming to an end.

When you eat dirt for the first time and leave your family to build a shack in the woods

A turd that comes out of a quarterback's anus that is so big, it will not flush!