after 72 years there is another intent for a simple term like boo!!!!
Do you wonder that every time you see a cartoon this time of year that has 'boo' in it????
Also the language I used i.e. what does it sound like had/has no intention to be used as a descriptive term.
I just had to call a couple of my black friends who grew up in some pretty tough really racist infested environments. They were flabbergasted....never heard of such a claim.
Must be where you grew up. Where I grew up, if one were to want to use a racist term there would be no mistake that we did....we didn't/still don't fool with oblique inuendo.
Life will never be the same....

just kidding.
BTK