This was a December tradition on the now defunct Snopes message board, so I am going to attempt to revive it here.
Take a Christmas song and paste it into Google Translate, or Bing Translate, or whatever your favorite online translator is. Translate it into another language, then take the result and translate that to a third language, and repeat until you think it’s gotten sufficiently garbled, then translate it back to English. Past the result in this thread.
Here is my first submission – Jingle Bells, translated from English to Romanian to Japanese to Norwegian to Greek to English.
they slide in the snow
by horse-drawn sleigh
in the fields we go to
keep on smiling
The bobtail bell rings
to light up my heart
how fun it is to drive and sing
Sleigh Song Tonight Oh!
jingle bells, jingle bells
it always rings
oh so much fun to drive
Open a sled, hey!
jingle bells, jingle bells
it always rings
oh so much fun to drive
by horse-drawn sleigh
the earth is white now
go while you’re young
get the girl tonight
Let’s sing this song in a sleigh
take bay leaves
240 for speed
Tie him to an open sled
and you take the lead
Oh jingle bells, jingle bells
it always rings
oh so much fun to drive
Open a sled, hey!
jingle bells, jingle bells
it always rings
oh so much fun to drive
by horse-drawn sleigh
oh so much fun to drive
In an open sleigh with horses!