The phrase follows the familiar head, shoulders, knees and toes pattern, but swaps the ending for butt, which is where much of its humour comes from. As a short intro, it has circulated in Thai TikTok dance and comedy clips, where creators use the familiar rhythm to set up a joke or a routine. Because the chant is short, easy to copy and instantly recognisable to viewers who know the trend, it keeps being reused for openings, transitions and playful group videos rather than as a standalone song.