When did this trashy trend to use the word “finna” become popular?

No, living in the south, I know it went more like this:

1. I'm fixing to take out the garbage.

2. I'm fix'n to take out the garbage

3. I'm fin ta' take out the garbage

4. I'm finna take out the garbage.

The lack of a "t" also distinguishes British Royalty bloodlines.

In the movie with Jodi Foster called Nell, she has been isolated from the outside world and when she is found her language is very distinct.

Southern American mountain dialect is the closest thing to dialect of the Early American settlers who had strong Irish accents.

The problem with dialects is that they impede communication and it takes more words to actually get messages across in translation.

Many languages are becoming extinct, especially in indigenous populations. Proper English should be encourages for people who want to advance in business and life.

garbage is too sophisticated of a word for slang, "trash" would be more appropriate.
Probably a lack of recyclables knowledge too, unless they are burned in a firepit in the backyard.

So uncool to learn and excel in school, yo. I thought adults were supposed to lose that attitude by the latest, in their early 20s

It's all about the white shaming. Schools put all other races on a pedestal except for whites, so no wonder kids want to act like any race but white.

Never heard that

A Grammar Nazi

Don't associate with people that can't talk or spell
( but I will spell it for them if they ask )

Don't bother complaining about my vernacular here - or typos from tiny il phone screen