köken: Literally, “all in larks”, a reference to the 1969 song “Cała jesteś w skowronkach” (lyrics by Leszek Aleksander Moczulski, music by Andrzej Zieliński), performed by the Polish rock band Skaldowie.
For quotations using this term, see Citations:cały w skowronkach.
to be happy as a lark, to walk on air, to be on cloud nine
köken: madár (“bird”) + -at (accusative suffix) + lehetne (“could be, it would be possible”) + fogatni (“to have someone catch”), literally “one could have him/her catch a bird”.