True that it doesn't take an art buff to appreciate great art, but I wouldn't want to tattoo something on myself that I know nothing about. It's personal preference. I'm not saying that it should apply to everyone thinking of getting Arabic script as a tattoo. Off the record, I don't think it's ignorant at all. I wouldn't want to get an Arabic tattoo (or any other foreign tattoo) and have people asking me questions I can't answer on it.
I still have a very basic understanding of Latin, French and German. I'm fluent in Irish. Most Celtic languages have very little difference between them. I'm just saying that I would personally feel hypocritical if I were to permanently have something in my skin just because it looks nice and have absolutely no knowledge on it.
Well, I'm not saying get a tattoo you're totally ignorant about
Obviously the plan of action would be to google some examples, then think of what you want it to say, then get someone to write it for you... etc.
If it were me, I'd know what every line, every stroke meant before putting it to my skin. So I guess we're in agreement there.
About your languages, cool! I'm of Irish descent and I've always regretted not knowing (fluently) the language of my ancestors. I know... giota beag. Same as french, really. Un peu
Je pense francais est un peu plus utile de irlandaise, pour entreprise, non?