What is public whaletail?

Public whale tails refer to a fashion trend where the top part of a thong or g-string underwear is exposed above the waistline of pants, shorts, or skirts. They first became popular in the early 2000s and were often seen in music videos, on the red carpet, and celebrities. The term "whale tail" comes from the shape of the exposed thong which resembles the tail of a whale. While some people considered it a fashion statement, others viewed it as inappropriate and even controversial. Public whale tails have since become less common as fashion trends have evolved.