It's bold colour with big black lines which gives it the cartoony effect.
Also that would have most likely been free handed by an artist so it is very unlikey it is an official font so to speak.
I've seen that style on a lot of things ranging from movie cases to posters and banners.True but for whatever reason it reminds me of a font style and as you mentioned a font style that has been bolded. Never really noticed the black lines for some reason. On and off its been a nagging curiosity to know what font style or at this point the closest font style that resembles his tattoo...
I never associated them, but as a Deadhead, now that you mention it, pass that over, dudeFont: Grateful Dead, Bold
Size: 350
Font is ugly
I've always thought that was a god awful tattoo. And I'm not one to bash people's tattoos.