Gagglefuck?
A sausage famine, surely.
Pussy party?
This is my new favorite word. 
Gotta go with astro and NinetyWt. It’s a hen party.
But “hen party” doesn’t capture the distaff side of the meaning of “sausagefest,” and “girls night out” is its exact oppoiste: “I came here hoping to meet women but it’s only a bunch of other guys who came here hoping to meet women”
(“and one brokedick geek who’s here to play DJ”)
An Oprah taping.
More specifically, fish tacos.
As disturbing as the imagery is that that conjures up, I’m glad you were thinking of crows instead of ravens.
But I think “a clowder of pussies” works.
Fallopian festival?
A congress of c*nts?
A lodge of beavers?
A volery of vulva?
A clash of clitori?
Snatch clatch?
After the party I call it an epic failure.
A coven.
tuna boat
Hair-Pie Parade?
Heaven?
I think the term ‘Sausage Fest’ implies that every ones on the pull and the odds aren’t good. No one would refer to something like a house warming party with lots of guys as a ‘sausage fest’. So the vaginal equivalent would be more like:
‘snail trail stampede’
Always been a clam bake to me.
Pussy Galore!
[Bond. James Bond.]