Top Definition
A sassy mouthed woman with a shitty attitude about everything.
April is such a pessimissy! She just told me she lost her faith in humanity for the umpteenth time, I swear if it wasn't for that smart-ass mouth of hers everything would be fine.

Ygritte: "You know nothing John Snow"
Jon: "I just gave you the lord's kiss, quit being such a pessimissy!"
#pessimist #optimist #negative nancy #doomster #skeptic
by cubsfanbigmike May 09, 2013
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