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An abbreviation and or short for - 'Paranoid'.
-used most commonly in public settings or in the presence of others whom may be less on-task when you are around the paranoid subject or their friends.
-usually, the paranoia is onset from intoxication,

(i.e. methamphetimine)
"Yeah, Cory was over lastnight getting high with us."
"How was that?"
"He was totally high and all P-NOID looking out the blinds every 5 seconds."
by firebeam11 March 19, 2010
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2
paranoia induced by drug use.
hey man, you're acting a little p-noid. Mabye you should put that bong down.
by DTM October 25, 2003
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