Tuna Fest 

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."

Tuna Fest by The Flying 69 August 30, 2009

tunafest 

the female equivalent of a sausagefest; a party with many more women than men

When Tanya noticed that the party consisted of all women, she exclaimed "What a tunafest!" And then everyone went to run naked at Primal Scream, which was more of a sausagefest.

tunafest by tagonist May 23, 2006