A meme is a video, image, or idea that spreads over the Internet.
For example, "Gangnam Style" is a meme with multiple layers as the song, music video, and dance went viral across the Internet.
Know Your Meme, a website dedicated to researching and documenting Internet memes and viral phenomena, declared "Gangnam Style" its best meme of 2012.
"Gangnam Style became a global hit, despite its language barrier, mainly because of the music video, particularly the horse dance and the dress code that hardly need a lot of explanation,"Know Your Meme editor Brad Kim tells us.
In a matter of months, "Gangnam Style" became YouTube's most watched video ever, and everyone with Internet access learned how to do the cheesy horse dance.
As 2012 winds down, let's take a look back at our favorite memes of the year.
12. Sinister Josh Romney
During the second presidential debate, Josh Romney -- Mitt's second oldest son -- was caught on camera giving Barack Obama the death stare.
11. Dangling Boris Johnson
London Mayor Boris Johnson tested out a zip line in preparation for the Summer Olympics.
Problem was, Johnson stalled on the zip line and was left dangling above a crowd of spectators and media.
Shortly after Johnson's zip line adventure, everyone on the Internet utilized their Photoshop skills to dangle Boris Johnson in ridiculous situations.
10. Sh!t People Say
It all started with "Sh!t Girls Say," a video poking fun at oft-used phrases said by girls.
From "Sh!t Asian Girls Say" to "Sh!t Gay Guys Say," the meme grew as more and more people made their own versions of the parody video.
Watch the 10 best '"Sh!t People Say" Videos HERE >
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