What is I'mma?
1.
The only contraction that is of 4 words, "I am going to." Either that or a contraction of 2 contractions, "I'm gonna." (1.)
Not to be confused with "I'm a..." (2.)
1. I'mma get me a cookie.
2. I'm a salsa addict.
See
2.
Contraction: I Am Going To
I'mma go to the bath room
See