monosodium glutamate 

Longer term for MSG, A flavor enhancer
more commonly used to refer to E621

Joe: Have you heard about some of the controversy surrounding monosodium glutamate?
Ben: You mean the furry porn website or the flavor enhancer

monosodium glutamate by bill but not really September 20, 2020

Monosodium Glutamate 

A cruel term used by furries to bait innocent people to E621.

For more in information on Monosodium Glutamate visit e621

Monosodium Glutamate by Dhwhfkwh June 3, 2021

Monosodium Glutamate 

If you're searching this up on urban dictionary of all things, you already know what it means.

Person 1: "What's your favorite site?"

Person 2: "Monosodium Glutamate *wink-wink*"

Monosodium Glutamate by SPAM Can Campervan March 20, 2023