Top Definition
when someone acts selfishly and does so in a shamelessly showy manner, especially in a situation like work where protocol keeps you from calling them out

(to understand why, sing like an opera singer warming up with scales: me me me me me me me)
can you believe the boss ate the last three slices of pizza?
yeah man, dude was having a total Opera Moment
by groggyjava April 25, 2008
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