What is the best whey to make friends with an American boy, you bunch?
Best Whey to Befriend a Boy
Explanation
Explain Bear
Listen here, smart guy. So, whey is a type of protein, right? And the joke is that the author is asking what is the best "whey" (like, the protein) to become friends with an American boy. Get it? You probably don't, because you are a genius.