Learn Finnish: Koomikon huono juttu suututtaa yleisöä. - The comedian's bad story angers the audience.

It is built from the base verb suuttua (to get angry). By adding the causative suffix -ttaa, the action is projected onto someone else. So instead of getting angry yourself, you are making someone else get angry.

Why is the object yleisöä (audience) in the partitive case?

Verbs that describe causing a feeling or emotion (like suututtaa, naurattaa, or itkettää) almost always take a partitive object. The emotion is treated grammatically as an ongoing, open-ended experience for the receiver.

The translation says "bad story", but could huono juttu mean something else here?

Yes! Juttu is a very flexible spoken-language word that can mean story, thing, or article. In the context of a comedian (koomikko), a huono juttu is the natural way to refer to a bad joke or a comedic bit that falls flat.

What is the base form of koomikon, and why does it lose a letter?

The nominative base form is koomikko (comedian). Adding the genitive -n ending closes the final syllable, which triggers consonant gradation. The strong double kk weakens to a single k, making it koomikon.