According to the Urban Dictionary, a Bryant Gumbel is a black
man having sex with a woman from behind while talking to a white
man.
Related Q&A：
What is doing a Bryant Gumbel a sexual position referenced in the movie The Change-up？-Oh my goodness, I have no idea what you're talking about! I haven't even heard of such a strange thing related to Bryant Gumbel and a sexual position in that movie. It sounds really odd and I don't think it's something that's commonly known or discussed. Maybe you got some mixed-up information or it's just a very obscure reference that not many people are familiar with.
