[PockyMePink]

I suggest to be more creative if you don't like the word "mom" and don't speak Japanese. Unless your mom is Japanese or is interested in Japan, it wouldn't be a representation of her at all.

Find something that symbolizes your mom. Her favorite colors, favorite items, something that you recall from her when you were really young, etc. Those will be more appropriate tattoes than a language that you don't understand and your mom doesn't have any idea about.