[OzukakiBurasuki]

I'm sorry, but don't do this.

It's really dishonorable to certain cultures when you tattoo their language onto you without even knowing the concept.

If you really must know why, it is because when デ (de) is pronounced for a longer period of time, instead of adding イ (i), it is also possible to use ー to prolong the sound from デ (de) to デイ (dei). It's essentially the same pronounciation, but デー (dee [dei]) would be preferred.

I'll just say this again to be exact. PLEASE do not tattoo this on your arm. I've already met someone who's done this before and it was really degrading and disappointing. (besides the fact that I ownd him in DDR >_>)

P.S. Is your son's name Jayden, Jaden, or Jaydon? That's what the katakana says.