I have my tongue pierced and I do not lisp. Neither does my boyfriend or anyone else that I know with tongue rings (unless they had a lisp to begin with). But that is beside the point. I myself would not want a very obvious piercing just for the simple fact that I dont like them. Other people, fine. I don't think they're trashy or anything, it's just not something I want for myself. I pierced my tongue when I was 18 and my mom didnt notice it for 2 weeks! People dont ever notice it unless I yawn or show it to them...employers included! I would agree to wait. It may be the "in" thing to do right now...think it over for at least a month before you really decide. You may find that you change your mind. And I hate to say it, but your mom probably isn't going to give in on this one. My mom would demand I take it out if I got one and I'm 23.