Your argument is invalid
If you were to cross the funny-captioning of I can have cheezeburger? with the surreal weirdness of Monty Python’s Flying Circus, and you’d have Your argument is invalid.
The site reminds me of the Panda on a Zamboni image I once saw ages ago, except these can be altogether more inexplicably bizarre… and hilarious.
The webmaster there I think gives an accurate description: I find these funny in the same way that Deep Thoughts by Jack Handy are funny. Others may disagree. However, their argument is invalid.