 Though the word is not included in major formal dictionaries, web-based user-generated dictionaries like the Urban Dictionary (which provides "pull me thong" as an alternative term for whale tail), the Double-Tongued Dictionary and the Wiktionary, have entries for the word. The book compilation of Urban Dictionary describes the whale tail as "the shape formed when a G-string rides up high over a woman's pants or skirt". The Dialect Society mentioned "longhorn" as an alternate term for the whale tail. A related term – sagging – implies the practice of wearing pants or shorts below the waist so as to reveal some or all of the wearer's underwear. Another related term – buttock cleavage – implies a minor exposure of the buttocks and the gluteal cleft between them not covered by an underwear. A third related term – Visible Panty Line (VPL) – implies underwear becoming visible through clothes.
