This phrase appears to be a combination of specific online identifiers or search terms rather than a established brand, product, or news event. Based on its structure, it may refer to: Vegas Golden Knights (VGK):
Twitter (now rebranded as X, but still colloquially "Twitter") is where ephemeral, "hot" content explodes. Tweets containing "VGK" and "megalink" often appear in: vgkmegalinktwitter hot