A thick bra, loose shirt, or other protective covering to prevent a woman's nipples or areolas from showing.
Since the air-conditioning in the hotel conference room was set to "iceberg", she decided to dart back up to her room for a sweater to use as mammoflage during her presentation.
by scotte61 November 09, 2006
The practice of concealing or diminishing the appearance of ones breasts. Also anything intended to do so, especially a tight band of cloth wrapped around the chest (also known as binding).
by the lezbro April 11, 2009