suoin
Suoin is a term that can refer to several different things, primarily in the context of Finnish language and culture. In its most common usage, suoin refers to a specific type of Finnish currency that was in circulation before the adoption of the Euro. This term is an informal way to refer to the old Finnish Markka.
Historically, the Finnish Markka (FIM) served as the national currency of Finland from 1860 until 2002, when
Beyond its monetary association, "suoin" can also sometimes be used in a broader sense within Finnish slang