"67" (pronounced "six seven") is a popular internet meme, slang term, and gesture that emerged in 2025 on TikTok and Instagram Reels, with no fixed meaning. It originated from the song "Doot Doot (6 7)" by rapper Skrilla, which gained traction in video edits featuring basketball players like LaMelo Ball, who is listed at 6 ft 7 in (2.01 m) tall.16

Origins and Spread

• The phrase was boosted by Overtime Elite player Taylen "TK" Kinney's frequent use of it in content.1
• Possible inspirations include 67th Street in Philadelphia (Skrilla's hometown) or Chicago, or the Philadelphia police ten-code "10-67" for a death notification.1
• It spread rapidly as a "nonsensical expression" or "burst of energy," earning Dictionary.com's 2025 Word of the Year title and inclusion in Merriam-Webster as slang tied to the song and basketball.16
• The Swedish Institute for Language and Folklore listed "six seven" in its 2025 new words as a nonsensical expression.1

Usage and Cultural Impact

• Primarily used by teens and tweens as a shibboleth—a linguistic marker of in-group membership without conveying specific information, similar to ancient examples like the biblical "shibboleth."3
• Appears in songs like "Unstoppable (67 Kid)" by Horror Skunx and BloxBoys, with lyrics repeating "67!" in a haunting, unstoppable theme.2
• Brands like Domino's ran promotions (e.g., $6.70 pizza with code "67").1
• Videos feature kids chanting "67" or "six seven," often labeled as "brain rot" slang from AAVE-influenced origins in the US.34

Linguists note it signals cultural awareness rather than literal meaning, with no consensus on deeper significance.136