Letters "asdf" stand for junk video: "shitteoblogging"

pea hix says,

here's some of my favorite shitteos called "asdf." i guess the main thing that ties all these films together is that the people that posted them thought so little of their work that they just titled them by hitting the four "home position" keys under their left hand- pretty much the default "word" you type when you have nothing at all to say but you have to fill in a text box anyway.

Link, and related Wikipedia entry on asdf: Link.