dNA

1) It's a slang for a czech name: Daniel
2) It's a spelling mistake while trying to spell the czech name: Daniel
(btw Daniel is fucking cool)
3) it's deoxyribonucleic acid

dNA let's go play dark souls you fat fuck.

dNA hwqO Are yoU dOnig.

Deoxyribonucleic acid (abbreviated DNA) is the molecule that carries genetic information for the development and functioning of an organism.