Logic is a powerful thing lol, and if we approach the question of what vegetables can be called funny then most likely we can call vegetables that laugh.

And is there a reason for vegetables to laugh?

I think that there is at least one reason for this, for example when vegetables are ticklish!

And when are vegetables ticklish?

Of course they are ticklish when they are grated well! :)

And a good mood in vegetables disposes to a good mood during their further preparation.