#SquareMentionsHeatwave refers to a promotional campaign or event on Binance Square, the social platform of the cryptocurrency exchange Binance.

​Imagine that Binance Square is like a social network where cryptocurrencies are discussed. The "Heatwave" is an event aimed at generating a lot of activity and interest. The idea is that by using this hashtag and mentioning your favorite cryptocurrencies ("Mentions"), you could participate in a contest, promotion, or simply help increase the discussion around those assets.

​In summary: It is a marketing tactic to boost interaction and conversations about crypto assets on Binance Square, often associated with prizes or rewards for participation. It is a way to "heat up" the atmosphere on the platform.