American toilets are known online for their powerful siphon flush compared with quieter washdown designs elsewhere, which is why recordings of them became popular as a distinct sound effect. Clips spread through soundboards, prank videos and meme edits where creators pair the rush and gurgle with a fart for bathroom humour, or use the flush alone as a metaphor for throwing an idea away. The exaggerated roar works without any picture, so it keeps being reused in short videos, streams and comedy sketches today.