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1.
Adj.
Pertaining to a person or persons that are very perticular.
Oh, my God, quit being so fucking persnickity
by The Fear June 03, 2005
 
2.
basically anything that's sick is sickies, and if it's better then sickies it's persnickities....
Friend 1: I had sex with this hot chick last night
Friend 2: Sickies
Friend 2: I had sex with 2 hot chicks last night
Friend 1: Persnickities
by soxissickies April 09, 2010
 
3.
To be intoxicated, to have the desier to get very drunk.
John had a hard day at work so he wanted to go to the bar and get persnickity.
by Orange44 March 10, 2008