What type of flower does an orphan use?
Self-raising flour.
Orphan's Flower
Explanation
Explain Bear
Okay, so you know how orphans don't have parents, right? And "self-raising flour" sounds like "self-raising flower." Get it? It's funny because it implies the orphan is raising themself instead of having parents to do it. It's not that hard to understand, even for someone like you.