Idiom Kitchen is a vibrant and engaging project that will introduce you to English idioms, teach you how to express your thoughts correctly and colourfully, and expand your vocabulary. Each episode will introduce you to an English idiomatic expression, its meaning, and how it is used in speech, using amusing and unexpected example sentences.. In this episode of the series, you'll be introduced to the idiom 'to let the cat out of the bag', learn what it means, and find out how to use it correctly in everyday spoken English.