Get the tattoo if you want, but definitely take the time to think it over. I like the idea someone posted of getting a temp tattoo of what you want, and see how you like it for a week.
Tattoos are like anything else; they will appeal to some, and not to others. Just make sure you don't get something that will have people on both sides laughing at you
As for the white trash comments, you have to kind of expect this is the attitude some people will have towards you. Especially if you accompany your tattoos with a large Dokken-mullet.