What is a pasta shark?

There is no such thing as a "pasta shark." This phrase likely doesn't have any real meaning and might be a playful or humorous combination of words.

It's possible you might have heard or read this phrase in a context where it was used in a way that made sense, but without more information, it's impossible to say.

Could you provide more context or details about where you encountered this phrase? That might help me understand what it could mean.