In high school, I took a course called American Dialects. Fun and informative. I recall that one of the words that my teacher kept throwing at us a being weird was "Irregardless". Well, it does have that solid double negatory.
When I was around 12 I had my tongue (frenulum)clipped to correct a speech impediment and had to have a bit of speech therapy.So now mispronunciation can grate on my nerves pretty good.esp if it is wilful as these two cases' example-my wife says rockweiler instead of rottweiler. I had a sgt who always said sammich instead of sandwich.
A friend's wife (who is a highly-educated professional) thought it was a razor-back tank (shirt) and not racer-back.
I can't tell you how many times I heard that, and other "Ebonic" slang, where I use to work. I also heard: "Can I Axe you a question"?
I remember about 20 years ago my oldest son used the phrase on me "Don't dis me". At which I responded "I don't disrespect you, but you disrespect yourself by using improper English". He never used gutter slang again.