The following were winners in a New York Magazine contest in which contestants were to take a well-known expression in a foreign language, change a single letter, and provide a definition for the new expression. HARLEZ-VOUS FRANCAIS? -- Can you drive a French motorcycle? MAZEL TON -- tons of luck IDIOS AMIGOS -- We're wild and crazy guys! VENI, VIPI, VICI -- I came, I'm a very important person, I conquered. COGITO EGGO SUM -- I think; therefore I am a waffle. RIGOR MORRIS -- The cat is dead. RESPONDEZ S'IL VOUS PLAID -- Honk if you're 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 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. EX POST FUCTO -- Lost in the mail QUIP PRO QUO -- A fast retort APRES MOE LE DELUGE -- Larry and Curly got wet. ICH LIEBE RICH -- I'm really crazy about having dough. VISA LA FRANCE -- Don't leave your chateau without it. COGITO, ERGO SPUD -- I think, therefore I Yam -----------------Thanks to a fwd from neares2@aol.com