This standard tag indicates the vertical resolution of the video.

It looks like you're asking for a full feature or explanation of the string:

palomanakakalalakika1998720pvmaxwebdlxc

However, this does not correspond to any known term, phrase, title, product, codec, filename standard, or cultural reference in any major language or technical field I can verify. It appears to be either:

This is a crucial identifier for pirates and archivists.