Many stock sites (like Adobe Stock or Getty) use numeric and alphanumeric strings to catalog clips. This could be a specific b-roll shot of rain, water textures, or a "wet" environment (implied by the "hdWet" part of the name).
Automated backup systems for cameras often use a timestamp (the 10414 prefix) followed by a camera ID or preset mode. 10414_hdWet21a.mp4
However, depending on where you encountered it, here are the most likely contexts: Many stock sites (like Adobe Stock or Getty)
The filename is a generated code typical of internal file-sharing systems, automated video exports, or specific content management platforms. Because these names are randomized, there isn't a single, widely known public "story" or viral event associated with this exact string. depending on where you encountered it