What is a Grand Slam?

From Wikipedia, I looked up Grand Slam and came up with this:

"The four Grand Slam tournaments are the most important tennis events of the year in terms of world ranking points, tradition, prize-money awarded, and public attention. They are:

• Australian Open
• French Open
• Wimbledon
• US Open

I feel like this is the generally accepted idea of what a Grand Slam is, something that is sports related. Unless, of course, you're a patron of Denny's. Then, THIS would be your idea of a Grand Slam (it's trademarked!):


For only $2.99, I can't help but think that this particular Grand Slam can only bring a Grand Slam of your own.

Get it, a Grand.. Slam? Grossly awesome.