Useful Finnish phrases:

Keksit keksit. = You invented cookies.
Karmi karmi. = The frame was scary.
Ruokin ruokin. = I fed the auk.
Ruletti ruletti! = Roulette ruled!
Jätti jätti. = The giant left (me).
Riitti riitti. = (I) had enough of the rite.
Hain hain. = I fetched the shark.
Kannan kannan. = I'll carry the canna lily.
Teetä teetä! = Have someone make tea!
Koita koita! = Touch the moth!
Voita voita! = Win butter!

(Edit: "rapsi rapsi" deleted.)

@0x10f Another reason to dump Duolingo.
😆