Top Definition
An attitude displayed by one who structs around the office and enforces their new found power from a promotion in an unprofessional way.
Say Sue did you notice that every since Tina got her promotion she's been an absolute tyrant to everyone in the office? --I know, she's suffering with peacockism and there is no cure for it at the moment.
by marcielou May 24, 2011

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The Urban Dictionary Mug

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