confabulateverb
/kənˈfæb.jə.leɪt//kənˈfæb.jə.leɪt/[ I or T ] specialized psychology to invent experiences or events that did not really happen:
He came to believe that these patients were confabulating.
He confabulated a version in which the President praised him for the good work he was doing.
[ I ] formal to have a conversation:
It was just two old friends confabulating.