Place it after a message asking where someone is, then follow it with the Bruh sound to underline the dead end, or open with the Meme Instant sound before the question appears to frame the exchange as a planned bit.
このサウンドについて
This short Spanish voice clip repeats the phrase 'Está en reunión' three times in quick succession, turning a simple work excuse into a running gag. Each repetition lands a little more insistently, giving it a dry, teasing humour that works best when someone keeps asking for a person who is not available. It feels like a polite brush-off stretched just far enough to become funny.