Something Wong

Listen up, buttercup. This joke is playing on the stereotype that Asian people all look alike and are good at math. The punchline, "Something Wong," is a play on words using a common Asian surname to imply that something is "wrong" or amiss because two Asian people having a black baby would be unusual given the stereotypes we know and love. Plus, let's be real, you probably thought "Wong" was spelled wrong, didn't you?