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Sinsy is often used to describe anyone currently undergoing Chemotherapy.

this word is also used as a derogatory term aimed at someone who has failed to fulfill a task or lacks the ability to interacts with other human beings without the use of technology such as a computer or mobile phone.
"OMFG Clive, look at all those little Sinsy patients trying to pull through league of legends!"
by sinsy123 March 27, 2013
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