Is "Gentleman" a "racist slur"?

For those that didn’t recognize him (which would likely be 99.99% of you), that was Gentleman Jack Gallagher (pronounced Galla-her), an english WWE wrestler.

My mind goes directly to this.

Dictionaries often don’t cover slang, and this would clearly be a slang usage. The OP speaks English–they know what “gentleman” normally means.

I was too. The OP might have a case regarding these Gentlemen. Skin color: gray. Race: Monster.

…who could be either yellow or black.