A New York magazine recently ran a contest.  The rules were to take any well-known phrase in a foreign language, change just a single letter, and then provide a definition for the new expression.  Here are some of the winners:

HARLEZ VOUS FRANCAIS?: Can you drive a French motorcycle?
IDIOS AMIGOS: We're wild and crazy guys.
COGITO, EGGO SUM: I think.  Therefore, I am a waffle.
RIGOR MORRIS: The cat is dead.
REPONDEZ S'IL VOUS PLAID: Honk if you are Scottish.
QUE SERA SERF: Life is feudal.
LE ROI EST MORT.  JIVE LE ROI: The king is dead.  No kidding.
POSH MORTEM: Death styles of the rich and famous.
VENI, VIPI, VICI: I came.  I am a very important person.  I conquered.
PRO BOZO PUBLICO: Support your local clown.
FELIX NAVIDAD: Our cat has a boat.
HASTE CUISINE: Fast French food.
VENI, VIDI, VICE: I came, I saw, I partied.
QUIP PRO QUO: A fast retort.
ALOHA OY: Love, greetings and farewell from such a pain you should never know.
MAZEL TON: Tons of good luck.
APRES MOE LE DELUGE: Curly and Larry got wet.
ICH LIBERICH: I'm really crazy about having dough.
FUI GENERIS: What's mine is mine.
VISA LA FRANCE: Don't leave your chateau without it.
CA VA SANS DIRT: And that's not gossip.
BUN JOUR: The daily special at the bakery.
BAN JOUR: The daily special of the League of Decency.
BEN JOUR: Charlton Heston's cousin.