virrapäällä
Virrapäällä is a Finnish term that literally translates to "with a runny head" or "with a dripping head." It is commonly used to describe a state of being very excited, enthusiastic, or perhaps a bit giddy, often to the point of being slightly irrational or over the top. The image evoked is of someone whose thoughts are so full of excitement that they are almost overflowing, much like a head with something dripping from it.
This expression is typically used in informal contexts and carries a lighthearted, sometimes even humorous, connotation.