Top definition
One look at someone taking Siira results in immediate unconsciousness. Siira is not to be taken with other drugs containing dopamine, or else you risk death. Side effects may include nausea, sudden surges of happiness and/or sadness, or death.
Person #1: I just took some Siira the other day, god that shit was so wack!

Person #2: *Faints*
by Francois Tanninger June 05, 2011
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