Do not compliment a Frenchman for being “candid”, when for him "candide" means “naive”, and certainly do not say he is versatile, which he will take to mean either volatile or fickle

Analysing England and France's love-hate relationship through language

Frogs and rosbifs: from the archive

ECONOMIST.COM

www.urbandictionary.com/define.php?term=ros%20bif

rosbifunknown. A derogatory term used by the French for Englishmen, probably because of the enjoyment and pride the English take in their roast beef. "Gordon ...

a.Abounding in frogs. Sherwood.
法國佬

法語

"They speak English?"

"Most of 'em speak Frog. There's the Greek chap who teaches English with you. Cocky little bastard. Gave him a black eye one day."

"You've really prepared the ground for me."

--The Magus