Spelling or Saying Words Differently to Create a Rhyme
What is the name for wordplay in which a word is spoken or spelled differently to make a rhyme? For example:
I'm running this shit you should try tacklin', Lil Wayne in one word immaculin [immaculate]
-Rick Ross ft. T-Pain, Lil Wayne, and Kanye West, "Maybach Music 2"
Wiktionary defines forced rhyme to mean exactly what you want.
However, other sources, such as this well-illustrated article on Rhymezone give a more general definition that includes other dubious, but just as pertinent, ways to make a rhyme.