Perhaps it's acceptable in moderation, like "ain't". It's needed for a rhyme in a well-known song by Billy Joel, for what it's worth. On the other hand, there is a different song by Billy Joel in which "anyway" is used for a rhyme.
No, I'm not a Billy Joel expert or fanatic. I just happened to notice, all right?
No, I'm not a Billy Joel expert or fanatic. I just happened to notice, all right?