The act of consuming alcoholic beverages before attending an event or function.(adjective)
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Use "pre-gaming" in a sentence
"Featuring flamboyant fashion students and walking art manifestos in what seems their late teens, this pre-gaming Le Marais haunt is sartorial voyeurism heaven."
"Sure, cheerleaders put in an appearance at the monthly dances sponsored by the Student Council, but that was only pre-gaming."
"Ten drinks pre-gaming as its called are not unusual before the evening fun begins."