Its a comment making fun of Sindarov beating Fabi in Round 4 of the 2026 Candidates. Fabiano Caruana (often called “Fabi”) is a top-level American-Italian Grandmaster.
Last Valentines I forgot to buy a gift for my girlfriend, and as shops were about to close I thought I was doomed. Thankfully, I remembered that when we watched chess, she always said: "I dig that Caruana guy". That way I realized she had long been wanting a choker.