Select the most appropriate meaning of the given idiom.

To put someone's back up

To irritate someone

The most appropriate meaning of the idiom "to put someone's back up" is >To irritate someone.<

This idiom is used to describe someone who makes another person angry or annoyed. The image of someone's back being "put up" is a metaphor for someone becoming defensive or angry.

For example, you might say that someone "put your back up" if they said something rude to you, or if they did something that you found annoying.

The other options are not correct.

• To flatter someone does not mean to put someone's back up.
• To help someone does not mean to put someone's back up.
• To deceive someone does not mean to put someone's back up.