Donald Trump's very existence may be an outlandish joke on humanity, but if not for Hurricane Isaac, he may have taken things even further. His "big surprise" for the Republican National Convention, which was canceled due to weather, seems to be quite similar to an ironic, over-the-top joke Tim Heidecker (of the duo Tim & Eric) told about Trump in a comedy routine last year.

For months, Trump had been teasing the media with a "big surprise" he had planned for the RNC in Tampa. In true Trump fashion, he declined to offer any specifics, only promises of grandiosity. But Salon's Alex Pareene was the first to speculate that the "surprise" would amount to Trump "firing" an Obama impersonator, based on said impersonator Kevin Michel posting a picture with Trump on his Facebook page.

Get it? Because on his TV show, "The Apprentice," Trump's catchphrase is "you're fired!" which is not at all gimmicky and very statesmanlike.

If this sounds like a terrible joke, Tim Heidecker is one step ahead of you. On his Adult Swim show "Tim & Eric Awesome Show, Great Job!", Heidecker and partner Eric Wareheim would frequently subvert typical humor conventions, and as a solo performer, Heidecker goes after the same targets. He regularly performs an unorthodox "hack comedian" stand-up routine in live settings, in which he takes on the persona of an open-mic comedian with banal observations on things like Coke vs. Pepsi and the differences between men and women.

When Trump flirted with running for president, Heidecker had a routine endorsing "Donald Trumps" for president. And the "you're fired" catchphrase was its "comedic" centerpiece. He would end the routine by envisioning a scenario where Trump would "fire" Obama (around 5:00 in the video above):

And finally, this is the greatest. This is the first thing he'd do. On Inauguration Day, he'd turn to Obama, and he'd go, "You're fired!"

In the video above, the audience is in on the joke, purposefully heckling him to add to his nervous act. And yet, all signs point to Trump turning this hacky joke into a reality -- at the Republican National Convention, no less.

Unfortunately, the delayed schedule to account for Hurricane Isaac caused convention organizers to cancel Trump's speaking spot (you could even say that they fired him). But who knows? With Trump, we never can totally rule out when and where he'll show up. And when he does, it will surely be a big surprise.

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  • Saturday Night Live

    "SNL" has lampooned Trump many times over the years, such as this sketch that parodied his "Days of Our Lives" cameo.

  • The Daily Show with Jon Stewart

    A young Jon Stewart pokes fun at Donald Trump's first flirtation with running for president in 1999.

  • The Fresh Prince of Bel-Air

    This clip of Donald Trump paying a visit to the Banks family to offer to buy their house is not embeddable, but you can <a href="http://www.youtube.com/watch?v=t85olu7ERvs" target="_hplink">watch the clip on YouTube.</a>

  • Home Alone 2: Lost in New York

    Trump did a one-line cameo in the sequel to "Home Alone."

  • Late Night with David Letterman

    A frequent talk show guest, Trump allowed his ego to match with Letterman's disarming goofiness to great effect, as shown in this clip from 1987.

  • Late Night with Conan O'Brien

    Conan's famous impersonation of Donald Trump has found its way into all of his talk shows.

  • John Mulaney

    Stand-up and "SNL" writer John Mulaney describes what Donald Trump reminds him of.

  • Da Ali G Show

    Watch how long it takes for Trump to realize he's been duped into doing an interview with one of Sacha Baron Cohen's bizarre characters.

  • The Peter Serafinowicz Show

    The chameleon-like British comedian hysterically sends up "The Apprentice" on his BBC sketch show.

  • Trump: The Game

    This commercial for Donald Trump's excess-celebrating 1988 board game falls into the "unintentional comedy" category.

  • Lewis Black's The Root of All Evil

    This episode of Lewis Black's show asked comedians which was a greater blight on our culture: Donald Trump or Viagra?

  • The Colbert Report

    The Colbert Report filed a "Difference Makers" segment on Trump's quest to test the zoning restrictions of a golf course he owned.

  • Frank TV

    As Donald Trump, impression virtuoso Frank Caliendo teaches a seminar on how to get rich.