Japanese tattoo's can be obtained from a number of tattoo shops located in New York City, such as rising dragon tattoos. They offer a wide selection of Japanese Tattoos in their shop.
the Japanese frog means wisdom.
It Can mean Dragon Cape/Dragon/ or even Dinosaur.
if you mean on your dragon, then yes. if you are talking about on your character, i have never heard of it. you have to have completed the fire orb saga to have any of the tattoos on your dragon, and also you must have visited lady Celestia and done a quest for her to be able to wield the primal elements (which are what the tattoos is)
The blue dragon is said to be a symbol of a leader in Japanese culture.
火竜 /ka ryuu/ means 'fire dragon' in Japanese.
Only the person wearing the tattoo can tell you what it means.
白い竜 (shiroi ryuu) would mean "White Dragon" in Japanese.
The dragon son
It means flying dragon.
It means Black Dragon in Japanese