A guessing game on porn video sharing websites, like rule34, where the viewer does not know what they will be watching, due to the thumbnail for the video being a black screen. This goes further into affect when the tags for said video have not been fully completed yet, so the viewer has no idea what the video is about until they play it for themselves.
Guy 1: How’s it going?
Guy 2: Not good I had to ply Black Screen Roulette today.
Guy 1: How’d that go for you?
Guy 2: It was inflation porn.
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