Is it normal that i've never had a teenage phase?

Nothing is wrong with you. Some people just don't change. I've actually just decide to try growing a beard; it's the first time in my life I've ever actually tried a different style. I'm still never going to get a tattoo or dye my hair; I feel no need to change in those ways, and social consistency is really not a reason.

Then again, Summernight, I feel your pain. I kind of never had a childhood either. (Though in some ways, I still feel like a child, though so do most adults I think, to some degree or another.)

Also, more generally, never trust Urban Dictionary. Some of the stuff in there is funny, and some is even a bit true, but most of it is just arbitrary nonsense.

Most people have a phase where they think differently to how they think later in their lives, but that doesn't mean you have to feel embarrassed about how you used to be. Even if you didn't have different tastes and emotions to how you have now, that doesn't mean anything is wrong.

My sister went through thousands of phases. My phase was me, myself, and I! =P I dressed however I wanted whenever, did whatever I wanted whenever, etc.. never had a reason to change who I was.

I never had a childhood phase :'(