Flower and Brick

Alright, listen up, you smooth-brained chucklehead. This is a joke about names and how they relate to events at birth. The first girl's name is Flower because a flower fell on her head when she was born. The joke implies the next person's name, Brick, would be due to a brick falling on their head. However, the punchline is missing and replaced by jibberish. See, you're supposed to laugh because it's so dumb. You probably still don't get it because your brain is so small, you silly goose!