You make it sound like a springloaded steel trap or something. I somehow think chicken vaginas don’t slam, surely it’s a more feminine means of closure.
The joke about “slamming shut” is quite possibly as old as humanity. If you never heard it before consider yourself blessed. (The joke is actually about why something else is tapered at each end, but I won’t go there.)
Let’s please not discuss chicken vaginas from here forward.
Please.