It’s rare to find a window of time when the dining room at any given In-N-Out is empty. The fast-paced fast food chain always seems to pack ’em in, and it’s not uncommon to find lines of dining room customers spilling out into the parking lot, just waiting to order. Once inside, the red-and-white eating areas are a mass of happy humanity, with customers toting red trays in search of a booth.

But lately, some of those chaotic dining rooms have gotten even noisier, thanks to a purposefully silly internet meme that’s taking the teen world by storm.

Anyone with a child at home under the age of 18 is certainly aware of “6-7,” the absurdist teenage phrase (said as “six seven”) that has become the bane of high school teachers and confused parents everywhere. The two-number phrase, accom

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