We need a radio astronomer to check out the science on this, but the basic concept seems pretty sound... and embarrassing.
If you were an inhabitant of another star system, which memes that have spilled out into space from little old earth would you be listening to right now? The folks at xkcd.com have answered that question below.
To those currently suffering the onslaught of "Wassup," we can only say, "We're sorry." But to the Capellans, who are just getting into Monty Python, we say, "You're very welcome."