"The process of transforming into an airheaded slut, perfectly happy to be used and degraded."
Alternatively, the female-bodied equivalent of feminization - rather than a male character becoming feminine, an already female character (or a male character in the process of gender transformation) becomes stereotypically hyperfeminine and hypersexual in body, outfit, behavior, or all of the above. Note: Like feminization, this should only be used for images that directly depict or strongly imply a process of bimbofication - images of characters that merely look voluptuous and skimpily dressed - even to an absurd degree - should NOT be tagged with bimbofication! There's a reason we don't have a bimbo tag. See also