http://gigglesugar.com/tags/Sign+Language

Funny stuff.

A funny Star Wars parody. (There are a lot of bad ones out there.)

(The Robot Chicken parodies are really good but they have been taken off of YouTube.com, so we're left with this.)

http://youtube.com/watch?v=byMClFz6w-w

www.urbandictionary.com

A pretty self-expanatory site.