So, the blade faces up, perfect, so you're holding with your thumb, your index is out, wrap and twist, and then, keeping the prongs down, they go into your mouth.
An earlier sword than the katana and the wakizashi, which were both worn with the cutting edge uppermost, the tachi had a blade up to 90 centimeters or three feet and was worn with the cutting edge facing down.
Blitz that with a knife blade into creme fraiche, so creme fraiche has a slight tartness, but obviously the creaminess as well which will ooze into the eggs once it's done.
Look at the tooth of any predatory dinosaur, Allosaurus, Ceratosaurus, even Raptors, you'll find that their teeth are more blade-like and are serrated on front and back, very common.