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A phrase with similar definition to Sausage Fest, a Stag Fest is typically an entire party of men, most of whom are hammered to the point of wobbling.
"hey Chris, how'd the party go last night?"

"fuckin' Stag Fest mate, most of 'em were hammered off their asses when i got there, so i bailed and went back home."
by Kromwell Tiberius Smith October 14, 2014
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