mystery meat noun4 •Any unidentified or mysterious biological material of animal origin.It’s not worth it, trying to figure Cam out—part of Cam’s special brand of charm is the screwed-up mystery meat that masquerades as his brain. — 2016 •(informal) Any processed meat product whose animal source is not readily identifiable.It was strange how this kind of shaved, basically overcooked mystery meat, which he guessed really was, probably, beef, could be tastier, under the right circumstances, than a really good steak. — 1999 •(slang, offensive) A person of unknown or undetermined racial or ethnic origin.In Old America most families had some form of racial “mystery meat” lurking in their genealogical pantries, but few would admit it openly. — 2010 •An asset of unknown origin.Here’s the Walkman killer. There’s no mystery meat. The reason you bought a music company is so that you could be the one to make a device like this. — 2011 formsmystery meats