How to delete fonts that are erroneously »in use«? There is this issue on OSX that often when you put a font file into the trash, it can't be emptied as the system thinks the font is still in use:



However, I've uninstalled it using Font Book, I've quit any application that might still be holding on to the font, including the Finder, but it's still reported as being in use. The only thing that helps is completely logging out and back in again, but that's not right. There has to be a better way. Has anyone figured this out?

(I know this isn't exactly a serious problem but it's nagging me.)
You could force remove it using Terminal, if it really bothers you. 

Example:
rm /Users/akiekintveld/.Trash/font.ttf
Would remove a file named "font.ttf" from your trash.