regurgitation
noun /rɪˌɡɜːdʒɪˈteɪʃn/
  /rɪˌɡɜːrdʒɪˈteɪʃn/
- [uncountable] (formal) the act of bringing food that has been swallowed back up into the mouth again- If regurgitation becomes severe, surgery might be required.
 
- [singular, uncountable] (disapproving) the act of repeating something without really thinking about it or understanding it- The book was described as a regurgitation of old ideas.