The phrase doy clases los jueves is plain Spanish for I give classes on Thursdays, and online it has become a reusable joke rather than a literal announcement. Short voice clips like this spread through group chats, meme pages and short video edits, where the line is detached from its original context and reused as a random, confident answer. Its appeal is the contrast between the boring calendar detail and the dramatic situations creators place it in, which keeps the sound useful for new jokes even without a single fixed source scene.