Question: is imma a real word?
Answer: In fact, this Imma (also spelled I'ma, I'mma, Ima, and I'm a) is not the contraction I'm followed by a, but a contraction of I'm gonna — which, of course, is a contraction of I'm going to, which is itself a contraction of I am going to. The progression from I'm gonna to Imma involves two common phonetic processes.