Truenos is the Spanish word for thunder, and clips under this name circulate on soundboards as a quick way to add storm noise without recording it. The ten second length makes it popular online because it covers a full crack and rumble in one file, rather than a brief hit. It is shared for edits, streams and group chats where a dramatic weather sound is needed instantly, and it remains in use because thunder reads clearly on small phone speakers and in noisy feeds alike today.