1. When a female character in any work of fiction who, in previous works, had very large bosoms is suddenly made to have much smaller ones in newer works. Generally associated with video games.

2. Catch all term to describe the attempts of feminists and other social justice interested groups to manipulate entertainment media into removing sexual content.
Example 1: Tifa Lockhart, Lara Croft, and Sonya Blade have all been flatwashed.

Example 2: Feminists argue that the slave leia scene from starwars should be edited or removed because of misogynistic content. This is an example of the second definition of flatwashing.
by Dingledorgle September 27, 2019
Get the flatwashing mug.