Sure! The hashtag #SaylorBTCPurchase often refers to a new purchase of Bitcoin by Michael Saylor or his company MicroStrategy.
Michael Saylor is one of the biggest supporters of Bitcoin, and his company MicroStrategy started buying large amounts of Bitcoin in 2020 and continues to do so regularly. Whenever the company makes a new purchase, the hashtag #SaylorBTCPurchase spreads on social media to indicate this process.