Supplementation Partner 

A sexual partner outside of your primary relationship in which the partner "supplements" what your main relationship is lacking in. The term is used as a less crass version of "fuck buddies" or "friends with benefits."

"My husband won't go down on me, but my supplementation partner sure does."

Supplementation Partner by CoffeeNapRepeat April 15, 2022

supplementarian 

also known as a technovore.

someone who takes supplements because a healthy diet is too much effort to maintain.

even a red-blooded meat-eater like myself can't maintain a healthy diet without popping a few pills, so i've become a supplementarian.

supplementarian by geek.neo May 22, 2012

simplementation 

Simplicity mn e5tra3 Ma2moun

Tafa2alo bl 5ayr tagedoh .. simplementation

simplementation by ElJoj October 28, 2020

Supplementaration 

Adding to, Contributing

The supplementaration of water allowed him to get a high.

Supplementaration by DannyWB October 13, 2005