Online, Linda and Heather circulates mainly as a TikTok trend sound, where short clips and edits reuse the same audio to build a shared joke around the two names. Its spread has been driven by creators rather than a single viral video, with each new edit giving viewers another familiar context for the sound. Because it is brief, easy to recognise and flexible enough for reactions, reveals and everyday comedy, it continues to appear in new posts long after its first wave of use.