Cartoon McKayla Maroney is not impressed by Charlie Brown

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U.S. gymnast McKayla Maroney's facial reaction to her disappointing (silver medal) performance on the vault launched one of the best memes to come out of the Olympic games.

Curated by the creators of the "McKayla Is Not Impressed" Tumblr page, the meme photoshops Maroney's glowering face into various scenes--like the Mars rover landing or the fall of the Berlin Wall.

Maroney herself couldn't help but laugh at the meme's latest incarnation, in which a cartoon version of her now famous podium glare is drawn at a party with Charlie Brown, Snoopy and his friends.

She also addressed the meme on David Letterman's show Tuesday night, calling it "pretty funny."

The London games, which concluded Sunday, brought forth a splendid array of Olympic memes, from Olympic divers on toilets to an unimpressed Queen Elizabeth.