The one that always bothered me. Anytime someone tries to ryhme any Long "a" word such as Rain, Plane, ..etc with the word AGAIN. Short "E". It's not AGANE.
And any form of Ubonics. "TH" is not the letter D of F. it is ASK not AXE. And Don't get me started on "shahizzle" or Izzle Anything!