The opposite of a sausage fest, a tuna fest is an event that is dominated by women. About a 4:1 ratio of women to men.
Person A: "Dude, my psych class is a total tuna fest. I'm like the only dude in there."

Person B: "You should drop that class and take weight lifting."

Person A: "Why?"

Person B: "Because you love weiner."

Person A: "You're right....I do love a good sausage fest."
by The Flying 69 August 30, 2009
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