This looks like a mix of crypto slang (“BTC” = Bitcoin), informal/sexual innuendo (“between the cheekz” suggests hiding something in the buttocks area, a known trope for smuggling or humorous crypto storage), and possibly a reference to a specific online video, meme, or mixtape title (“vol 1,” “13 top”).
: "Between the Cheekz" is a colloquialism often used in urban music or fashion. "BTC" in this instance might not refer to Bitcoin, but could be an acronym for a specific group, brand, or creative collective. Underground Crypto Subculture btc between the cheekz vol 1 13 top
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