To regurgitate is to bring already swallowed food back up through one's throat and out the mouth. Not so nice in humans, but much more understandable (if still gross) in birds — who feed their baby chicks by regurgitating.
Finished cramming for your exam? Ready to do a data dump? Then you're about to regurgitate all you've learned — repeat information verbatim without any real understanding or analysis of it. Don't worry, everyone does it, from high school and college students, to grown-ups in corporate boardrooms.