Jargons and idioms, fixed expres

rain cats and dogs - rain very heavily.

It's raining cats and dogs tonight.

pick a language up - learn a language by living in a country.

Kevin picked up a little Italian when he lived in Rome.

break a leg - do well at a performance or presentation.

Break a leg on your presentation John.

Proverb

Proverbs are short sentences known by quite a large part of any language speaking population. They tend to be old, give advice, and be very insightful. Many proverbs are taken from literature, or from other very old sources. However, they are used so often that the speaker does not realize who originally said or wrote the proverb.

Example Proverbs