I created an app launcher in Midori. How can I delete it?

I was messing around in Midori this afternoon and I created a launcher in the Slingshot menu (see image). I didn't really want to do this; it's just a random youtube video, but now I can't figure out how to delete it. It's not listed in the Applications menu in Midori, and it's not in the Software Center. Can someone help me out?

A launcher is basically a .desktop file which you can find in ~/.local/share/applications/. Just delete it and the launcher is gone.
(/usr/share/applications/ contains launchers of other applications for all users.)
Also be sure to check [~/Desktop/] - this directory is also attached to Slingshot and [.desktop files] will be added to the launcher, too.