Via Ontario Kink:

"Bimbofication the process of converting a person into a ‘bimbo’.

....It is a fetish revolving around the objectification of a person...typically involving the modification of ones looks, body, or behaviour.

People engaging in bimbofication wish to explore the act of becoming exactly what their partner wishes (or crafting their partner into their ultimate fantasy), physically, mentally, and sexually. Some people choose to explore this fetish just for fun ‘in the bedroom’ or on the weekend, and others may choose to make permanent modifications that will be seen in their day-to-day life.

Changes to physical looks may include make-up, growing and dying of the hair (a popular option is long and blonde), application of false nails, long eyelashes, breast enlargement, lip enhancement, and tanning.

Such modifications are often done to the extreme, taking on an almost unnatural look. Clothing is often designed to be tight fitting and revealing. High heels are often worn.

In many cases, bimbo ‘training’ also involves attempting to modify the mental processes and behaviours of a person to make them appear less intelligent, or create a desire for them to exist for the exclusive pleasure of others....

In terms of sexuality, a common thread amongst people enjoying the bimbofication fetish is the idea that the existence of a bimbo is merely for the purpose of fulfilling the sexual desires of their partner(s), and that their own pleasure is of little to no value. In many cases, the bimbo takes on the form of a living sex doll, toy, or object whose job it is to bring pleasure to their partner, or anyone of their partner’s choosing.  This usually ties into the physical looks of the person, as their looks must cause pleasure as well. Enhanced breasts and lips are an example of this.

At the time of writing, 1,415 FetLife users were listed as being interested in the fetish of bimbofication."

https://ontariokink.com/fetish-friday-bimbofication/