Monosodium glutamate.

A substance added to food to trick the stomach into feeling full. Wears off after half an hour. MSG is used most often in buffet-style restaurants and Chinese food restaurants to help maximize profits by saving food resources.
I went to Grand China Buffet and got full immediately after eating only two small plates. I suddenly felt hungry again the minute I arrived home. Damn MSG.
by AYB May 21, 2003
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Food with MSG in it is the best because mmmm it's soooo good!!!
by Paco Izzle October 21, 2011
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Short for 'Message'

Used to smite little folk on MSN, even though they asked for it simply by using MSN.
<HaiBai> Hai wassup
<DyArGH> OW! MSG'D!
<HaiBai> g2g bai
<DyArGH> ARR! MY FACE!!
by Bastardized Bottomburp June 18, 2003
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"3 spring rolls please"
"MSG'D!!"
"Ow!! My stomach lining!!"
by tozza September 28, 2003
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A preservative sometimes used in frozen food, particularly western-style Chinese cuisine.
Can cause headaches or other symptoms in some consumers.
I only eat Chinese food fresh at restaurants, because the MSG in the frozen meals makes my head throb all night.
by Nat Rator June 18, 2004
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MSG is like salt on crack, it improves almost every meal.
Person 1: This food is so bland...
Person 2: Because there's no MSG in it.
Person 1: Oh I see
by G-Green March 15, 2021
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