Top definition. A-Cup unknown. The smallest measurement defining the size of one's chest size; neither objectively better or worse than larger breasts. The derogatory term " flat-chested " is considered synonymous to it. Often times disregarded as beneficial due to its disbenefits, despite the plethora of advantageous properties it has.
In many situations, the right amount of cleavage can create a flattering, sexy look for a woman. Cleavage visually enhances the bust, and can make flatter chests appear fuller. Although women with larger breasts generally a C cup or above often have an easier time creating cleavage naturally, with a little effort, it is possible for women with smaller breasts to show some cleavage as well. You can show cleavage even if you have small breasts by choosing the right bra and clothes.
Join the club! Sign up for our newsletter. For the majority of my adult life I hated lingerie.
Slipping straps, bands that ride up, and extra space in the cups are all common complaints for women in the IBTC. And let's be clear, just because you have a smaller chest doesn't mean you want to go straight to the push-up, extra padded section in the bra store although that is an option if you're looking for a boost. For those petite in the breast department, there are several indie brands that cater to sizes AAA through C.