1. Plans to do in the very near future (...or an excuse for
procrastination)
2. About to
start something
3. (To a lesser degree) To make preparations for something
4. In the case that it is an excuse, it's also cause for a good butt
whoopin
See Finna
Mama: Boy did you clean that room yet?
Boy: I'm
Fin' to!
Mama: What did you say!
Boy: I'm about to do it right now.
Mama:
That's right. You better had!