Why do asses make the best detectives?
They always crack the case!
Ass Detective
Explanation
Explain Bear
Listen up, buttercup. The joke plays on the double meaning of "crack." Detectives "crack" cases, meaning they solve them. But "ass" can also refer to the butt, and a butt can "crack" (you know, fart). It's funny because it's unexpected and kinda gross. And you, my friend, probably need this explained because you're still using Internet Explorer.