Kids are shouting it in classrooms when a teacher turns to page 67, when lunchtime is 6 to 7 minutes away or for no reason at all. It’s become so ubiquitous that Dictionary.com named it the word of the year.

The term "6-7," also written as "67" or spelt out as "six-seven," became a trend on TikTok and other areas of social media, created mostly by Gen Alpha parts of Gen Z. The origins of the phrase go back to a song called "Doot Doot" by Skrilla, where "6-7" is a recurring lyric.

However, the original context of the song is a reference to 67th Street in Philadelphia and a nod to police codes. Since then, though, it's fair to say that the 6 7 meme has taken on a life of its own, now being littered across the internet and having even been referenced on a South Park episode.

The viral meme has origins from a TikTok edit of Hornets guard Lamelo Ball, who is 6 feet, 7 inches tall.

Another of the most notable TikToks is of a child at a basketball game yelling '6-7' into the camera. As per The Guardian, somewhere along the lines, the shouting got accompanied by a hand gesture of two upturned palms rising and falling, like weighing scales.

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The origins of “6-7” can be traced in part to hip-hop artist Skrilla’s song “Doot Doot,” which became a nonsense meme trend in late 2024 on TikTok. In the song, he raps, “6-7, I just bipped right on the highway (bip, bip).”

The 6 7 craze began with rapper Skrilla’s late 2024 song “Doot Doot (6 7),” which includes the words “6 7” in the lyrics. Content creators started using the song as the background track for short online videos, especially sports videos. And these sports videos often featured Charlotte Hornets star LaMelo Ball, who stands 6-foot-7.