aa cup

The smallest possible breast size.

Measuring less than 1 inch difference between the bust and the below bust (band) measurments.

by asd324 May 6, 2009

Did you hear about Steph, Cam and Nash? We thought they were guys with there AA Cups

by mattyraw October 1, 2016

AA-cup

A bra size so small that many scientists are baffled how some girls have breasts that small and why it even exists

Guy: What bra size do you wear?

Girl: I'm AA-cup.

Guy: THAT SMALL!? I don't think you need a bra at all if its that small