The string inurl:axis-cgi/mjpg/video.cgi exclusive is a specific search query (often called a "Google Dork") used to find publicly accessible live video streams from Axis Communications network cameras. This query targets the internal URL path used by the camera's web server to output Motion JPEG (MJPEG) video feeds.
axis-cgi: Refers to the Common Gateway Interface (CGI) used by Axis devices to handle web requests.
If you own an Axis camera, you should follow the recommendations in the AXIS OS Hardening Guide to prevent your feed from being indexed: Axis Secure Remote Access
Devices appearing in these search results are often "exposed," meaning anyone with the link can view the live feed without a username or password.
AxisCGI is a term associated with Axis Communications, a company that produces IP cameras and other network devices. AxisCGI refers to the company's CGI (Common Gateway Interface) scripts used for interacting with their cameras.