What do the playing card tattoos mean on peoples knuckles?
The main reason for the playing card symbols is that fingers and hands have much tougher skin than the rest of your body and as such won’t take much in the way of an intricate design. The playing card symbols are nice and easy and there’s one for each finger. As for why he didn’t get the hearts, I’d guess that he didn’t want to look gay with having a red love heart on himself. Teardrops originally meant ‘people you’ve killed’ but most people are just copying some idol or other (who ironically almost all wore fake teardrops) in a hope to be truly controversial.