I don't think that you mean a hidden tattoo. If that is the case, there is no need for you to ask such a question.
An exposed and eye-catching one, however, would at least lead to distraction of others in workplace or other social circumstances when you actually prefer that others pay attention to your qualifications.
Never, ever did I hear such a thing that a tattoo is bonus during an interview. Of course, it would be a completely different story if you are a performing artist.
When you say life overseas, I think you mean social life instead of stay at home.