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1.
similar to a zit but bigger. Kind of like a tumor but is (in most cases) non-fatal.
I have a cyst in my wrist from when i hurt it but it'll be gone in a few weeks.
by Blind_assassin September 27, 2005
 
2.
uhh little bubbles
some fat kid enjoys poking my cysts.
by matt October 25, 2004