tömmö

Tämmä is a Finnish term that can refer to several things, most commonly a specific type of mushroom or a colloquial term for a person.

As a mushroom, Tämmä typically refers to the species *Tricholoma equestre*, also known as the edible tricholoma or street mushroom. This mushroom is found in coniferous forests across Europe and Asia. It is characterized by its yellowish-white cap, white gills, and thick stem. Historically, it was considered a popular edible mushroom in some regions, particularly in the Baltic states and Finland. However, recent research and documented cases of poisoning have raised concerns about its safety, leading to a reevaluation of its edibility. It is now advised that consuming Tämmä can lead to rhabdomyolysis, a serious condition affecting muscle tissue.

In colloquial Finnish, Tämmä can be used informally to refer to a person, often in a familiar or slightly dismissive way, similar to "guy" or "dude" in English. The specific connotation can vary depending on the context and tone of voice. It is generally not considered a formal term and is more likely to be heard in casual conversation. The etymology of this colloquial usage is less clear, but it is part of the broader landscape of informal Finnish address terms.