Ø

The sound that no one apart from the ones with potatoes in their throat and the ones who eat them can pronounce.

Also the 28th letter of the Dano-Norwegian alphabet.

potato farmer: hey can you pronounce "ø"

american guy: oeeehhhh

potato farmer: *points to a coconut palm tree (why tf is there a coconut palm tree there)* woah look over there what is that weird hairy sphere on the coconut palm tree tree

american guy: thats a coconut

potato farmer: ok now pronounce the "u" in "coconut"

american guy: ø

potato farmer: ok now say ø

american guy: oeeehhhh