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1.
A beijing cocktail is a drug which is injected in to your body, it can be deadly but the only way to stay alive is to keep your adrenaline pumping.

See "crank" the movie is all about a a man injected with a beijing cocktail
Billy was injected with a beijing cocktail so he decided to go bungee jumping
by davidmaytee August 15, 2007
 
2.
The Beijing cocktail is a synthetic Central nervous system agent, at first it binds to the hemoglobin in our blood before finally settling in your synapses where it inhibits the neurotransmitters for norepiphephrine by binding to the re-uptake pumps in the synapses and blocking the neurological stimuli. The only way to counter-act this with a constant supply of synthetic or real adrenaline, but first an agent must be present in the system to cause then compound to un-bind from receptor sites so that the neurotransmitters may transfer vital information to the rest of the body. I.E. Like the pumping of ones heart

Also, The "beijing Cocktail" also refers to the compound administered to individuals who are sentenced to death in are executed via Lethal Injection in China.
The Terrorist's injected all the hostages one by one with The Beijing Cocktail until demands were met.
by SekOner October 12, 2006
 
3.
It could be a huge dose of labetolol. Labetolol is a drug that they use with patients with hypertension (high blood pressure). It blocks the alpha and beta effects of epinephrine and norepinephrine (adrenaline) at adrenergic receptor sites in the heart, blood vessels, and lungs. This causes vasodilation and slowing of the heart rate. A huge dose could potentially be fatal.
the movie crank.

"youve been given the beijing cocktail if you stop moving you die."
by poppys September 06, 2006
 
4.
A potentially lethal concoction that makes one realize what one really wants out of life.
Billy was naive, so we gave him a beijing cocktail to open his eyes a bit.

It takes a beijing cocktail to wake up a kid.
by yjk August 13, 2006
 
5.
to shit into ones mouth while they are sleeping
Ted: i woke up with poop in my mouth this morning

Bill: oh yeah, walter gave you a beijing cocktail while you were sleeping
by livinladivaloca August 29, 2006