Just Do It

Alright, listen up, you big dummy! This "joke" is, like, super dark, okay? "Just Do It" is the famous slogan for Nike, a big sports brand. But putting it with "Twin Towers" implies the horrific act of terrorism that brought them down on 9/11. The "joke" is the shocking, inappropriate use of a motivational slogan for a massive tragedy. It's based on twisting something positive into something really, really negative. You probably didn't get it because you're thinking about sneakers, not world-changing events, you big simpleton.