Originally Posted by MichaelChen
The dragon tattoos are a Mandarin reference, as comic Mandarin is sometimes drawn with a dragon tattoo on his chest. That's why Shane Black himself referenced the dragon tattoo when saying in the same sentence that Killian is the Mandarin. Shane Black says it outright, guys, Killian is the Mandarin and his dragon tattoo is a part of that, a reference to Mandarin having a dragon tattoo on his chest.
The fan denial is really starting to get hilarious.