The Cleavage Window trope as used in popular culture. A cut in a woman's top that shows her breast cleavage, whether it's on the top or front side.

This is when a dress or top is specifically cut to show the entirety of the wearer's cleavage and the top half of her stomach... or the bottom half.

Harumi shows Yuzu that she manages to smuggle her phone to school by hiding it in her cleavage. But when Yuzu tries to emulate her, the phone just falls off due ... Giant Robo (Anime) · All Those Wonderful Toys · Hammerspace

Torpedo Tits: Having weapons in your boobs. Underboobs: The cleavage is at the bottom of the breasts, instead of the top. Victoria's Secret Compartment: Using ... World of Buxom · Hidden Buxom · Skinship Grope · You're Drinking Breast Milk

A page for describing Laconic: Cleavage Window. A hole in a woman's top that accentuates cleavage.

3 авг. 2022 г. · Absolute Cleavage is supposed to be cleavage that bares part of the stomach, essentially going far beyond simple cleavage. However, most ...

When a top is short enough or strategically cut to show the undersides of the breasts it's known as Underboobs.

A neckline that is so low that the wearer seems to be one deep breath away from a Wardrobe Malfunction (which almost never actually happens).

21 июл. 2023 г. · This is when a dress or top is specifically cut to show the entirety of the wearer's cleavage and the top bit of her stomach. Anime and Manga · Comic Books · Film · Live-Action TV

As for why — well, she's in her third ascension outfit, which is charitably described as a Breast Plate with a Cleavage Window that also shows her underboobs.