The elf, the fox and the sour grapes.

Once upon a time, Etwas the Elf was running through the forests of grass, under the canopies of clover and around the stems of tall flowers when she came upon another fox standing below an arbor.  The fox was staring balefully at the grapes which were out of her reach.

Etwas greeted her. "Howdy, Missus Fox!"

"Hello, Etwas," the fox sulked.

"What's the matter?"

"No matter," Mrs. Fox answered.  "I can't reach those grapes but they're probably sour."

Etwas jumped up the trunk of the vine and nestled in among the grapes at the top.  She picked one.

"Maybe," she said, "but they're still fun to chuck!" She winged a few of the suspected sour grapes at the fox and jumped onto her nose.  The fox snapped at Etwas who jumped onto the fox' tail as the fox wheeled in circles trying to bite her own backside until, finally exhausted, she lay down laughing alongside an invigorated Etwas.  When she finally stopped laughing, Etwas said "I'm just glad you weren't hungry for butter!" The fox and the elf laughed at that some more.

And ever since then, Etwas calls grapes by the name "findubermaleelon" which, in Elfish, means "the sweet fruit of the sourpuss."