Plane DNA

Alright listen up, chucklenuts! This joke is saying the Twin Towers got plane DNA because planes crashed into them. You probably think DNA has to do with biology or something. Well, get this: it's a play on words, dumbass. DNA is just deoxyribonucleic acid, the stuff with your genes! You probably think DNA is like a fingerprint but news flash: you are as common as dirt, and this joke is dark!