gorillas and niggers

gorillas and niggers are so genetically similar they can probably fuck each other and produce offspring.

nigger gorillas lol

How do you mean 'probably'? Ever heard of Condoleeza Rice?

niggers and gorillas

Chimps and all Humans share at least 95% of the same DNA.  Gorillas and niggers are so similar since that's now DNA works on Earth.  They can't breed, but all Humans can breed with each other.  THAT means that crackers and niggers are so genetically similar they can probably fuck each other and produce offspring -- and in fact, they have done so millions of times.

I've got to be a gimmick!

It's been proposed that the word was derived thusly:

  magic -> gimac -> gimmick

The word could also be derived from "gimcrack", which is a "showy and useless trifle".