Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
There are lots of similar videos out there, but in this one, the doggo actually spits it out.
There's another, which I can't find at the moment, where the dog looks at the owner after the reveal and gives him a "What the actual FUCK?" look.