It’s Raining Cats And Dogs.: A Collection of Common English Idioms and Colloquialisms

A concise collection of useful idioms and colloquial phrases used by native English speakers in the United Kingdom. The idioms and phrases are grouped by situations/contexts in which you might meet them, covering general conversation, expressing feelings and understanding, problems, solutions, relationships and time expressions.
Useful to non-native speakers in making sense of our rich and often funny English language. After all, learning English as it's spoken in the UK isn't exactly a piece of cake!