If you haven't served in the Finnish military, you won't probably appreciate the funny in this.
The deal is, that when you get chewed in the FDF, or when somebody just doesn't care to check your name, you'll be called "Nönnönnöö", as proper military etiquette requires the commanding person to address everybody by their name, and this sort of does it. Nönnönnöö doesn't mean anything, it's just "Yada-yada-yada", except a bit more demeaning.
You didn't get it. Yeah. We knew it.
These are manufactured by patchmakers who've also made similar insignia for the Finnish army, quality stuff!