Definitely not made up. It's basically a platform to allow advertisers to manage bidding on ad impressions in real-time, among other aspects of their ad campaig

Definitely not made up. It's basically a platform to allow advertisers to manage bidding on ad impressions in real-time, among other aspects of their ad campaigns. See https://en.wikipedia.org/wiki/Demand-side_platform https://en.wikipedia.org/wiki/Demand-side_platform