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A rather large, unstable chemical that some people claim tastes like sugar.
Despite being called an 'additive' it breaks down into numerous other chemicals, one of which is very bad for people with a certain genetic disorder. Methyl alcohol (the stuff in windshield wiper fluid) is also a common by-product and really isn't good for anybody
Diet Pepsi has a lot of aspartame in it.
Diet Pepsi tastes gross.
by GiBe June 07, 2005
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(pronounced "ass-parta-mee"), used when referring to one's own buttocks.
"Daaayum! the aspartame looks hella good in these new pants!"
by Heatha G June 17, 2005
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Artificial Sweetener. Terribly dangerous, causing sickness, brain tumors, allergic reactions, memory loss, weight gain, and more. Breaks down into, among other things, formic acid, which is what causes hangovers. Also causes carbohydrate cravings! There's actually a memo circulated by the US Air Force warning its pilots to never have anything with any amount of aspartame, or be GROUNDED FOR A YEAR!
Bob started drinking diet coke with aspartame, then started to gain weight.
by John Kristel November 29, 2005
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Some nasty ass shit they put in Diet drinks, is an artificial sweetener, can kill you, will kill you, and if you drink a shitton of diet drinks quit because this shit is in it and you are basically killing yourself slowly. It also caused tumors in small animals such as lab rats and will kill them if they have a small cup full of it. long fucking story cut drastically short, its deadly and in everything and is just as dangerous as sugar. And a little side note sugar is a drug because it triggers the same spots in your brain as heroin and any "drug-dealer on the street" type shady shit your teenage son or daughter probably already do without you knowing it. I hope you fuckasses learned something today because I could have just saved your measly ass life, bitch.
Aspartame infested Diet drink: Oh I'm healthy for you I help you lose weight.
Doctor: Bullshit you kill people.

Aspartame infested Diet drink: no I don't, and how do you get that rude accusation?
Doctor: you contain aspartame, and that kills people BITCH!
by Zaelle April 25, 2014
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(Or E951) Is a sugar substitute, also classified as an "excitotoxin", found mainly in tea sweeteners such as Equal/Nutrasweet, diet drinks and sugar free products. Aspartame consists of 50% aspartic acid, 40% phenylalanine and 10% methanol.

Aspartame is known to be a very dangerous substance as many people have been complaining of over 92 different health side-effects after consuming it. Short term side-effects include headaches/migraines, dizziness, difficulty thinking and nausea, whereas long-term consuption of it has been known to cause diseases such as fibromyalgia, multiple sclerosis, blindness and brain tumours.

During digestion, the methanol breaks down into formaldehyde and formic acid which is then absorbed into the bloodstream. These two substances have the potential to break down the blood-brain barrier and destroy neurons and brain cells. Aspartic acid and phenylalanine are actually utilized by our bodies in small doses, but in high amounts, they are neurotoxic.
Diet coke drinker: "Here, u shud try sum of this, its shugger free!" 8^D

Aware individual: "Oh God no thanks, that contains aspartame, I'd keep well clear of that if I were you!"

Diet coke drinker: "lol, wots tha?" :S
by Gik130 July 03, 2009
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Aspartame is a chemical consisting of aspartic acid, phenylalanine and methyl alcohol. It is an artifical sweetener to which a few people are sensitive but never to the extent of peanuts or wheat. It will decompose to form aspartic acid and phenylalanine which are amino acids that are essential to your health. It also forms methyl alcohol but you get more methanol eating an orange than drinking a can of soda containing aspartame. It has never been shown to be dangerous to people. Some people try to say that pilots have been told to never ingest aspartame or they will be fired. That is simply a lie. I know a tremendous amount about aspartame because I spent 4 years studying it's kinetic decomposition. I doubt the other people reporting about aspartme here really know what they are taliking about.
The government has shown that drink soft drinks containing aspartame is not dangerous unless it is consumed in very large quantities.
by hankg35 October 08, 2009
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