Go Up In Flames

Listen up, buttercup. This joke is dark. See, the comedian wants to tell a joke about 9/11. 9/11 refers to the September 11, 2001, terrorist attacks where planes crashed into the Twin Towers and they went up in flames. Explain bear knows you were probably picking your nose during history class, which is why I am telling you this. The punchline is that the joke would "go up in flames" which is a double entendre. It means the joke would fail, but it also reminds us of the towers going up in flames. Do you get it now, Einstein?