: This looks like a version number, a hexadecimal code, or a specific timestamp/database ID used for internal filing. mp4 : This indicates the file is a digital video container.

about where you saw this name or what the video is supposed to be about?

: This appears to be a personal username or a handle. The term "dirty snowball" is also a common astronomical nickname for comets , which are composed of ice, dust, and rock.