Idioms
Idioms can be a powerful linguistic tool only when they are used in the right way in the right places.
Idiom:
rat out on (someone)
Meaning:
to desert or betray someone, to leave someone at a critical time
Example:
The boy's friend ratted out on him and refused to support him in his fight with the neighborhood bully.
List of common idioms, their meanings and examples of their usage in sentences
Idioms are phrases which cannot be understood simply by looking at the meaning of the individual words in the phrase.