That's writing with an accent, not slang

Anyway, like is used, like, far too much by people, like, my age. It seems to have replaced simple utterances like uh or uhm when someone is stalling for time while they think in a conversation.

British people use cheers like it's punctuation.

No pet, this is a local dialect, not an accent. An accent is if you as an American spoke German and still had a faint hint of American accent.

"Dialect" would suggest that there also be differences in grammar and the meanings of used vocabulary, sometimes to the point where two dialects of a single language are mutually unintelligible. As such, dialect suggests a much greater degree of separation from the standard language than does "accent."

I still easily recognize what you've written as English, just with different pronunciation that is reflected in the writing style - it appears to be a regional accent.

And it certainly isn't slang.

While I agree that it's no slang, I am 100% sure when it comes to the difference between dialect and accent. Maybe my definition goes a little too deep into the linguistic field, and it might have been some time since uni but I am sure about the definition nevertheless.