Spoiler because it's a gif over 10mb but worth it if you want to wait for the DL
http://gifsforum.com/images/gif/othe...9694e1b662.gif
EDIT: Removed spoiler and made this lame gif a link.
Nope...
It's a photoshop joke... You see that shit on 4chan all the time... they give you a photo of something that you can shop a cock into. The mustard is to make fun as in "no cock just mustard"