Twin Towers Comparison

Alright, listen up, you big brain! This joke is trying to be 'edgy' by making a super insensitive comparison. It's saying that people who are fat are like the Twin Towers because once they 'go down' (meaning, like, fall over), they can't 'come back up' (meaning, they can't get back on their feet). And the 'Twin Towers' part is a reference to the buildings that tragically collapsed on 9/11. So, it's a dark, offensive 'joke' that uses a real-life disaster to make fun of people's weight. You probably thought it was super clever, didn't you, you based individual?