Faux pas

Faux pas - an embarrassing remark in a social situation.

Example - "I'm sorry, did I faux pas?"

Image - http://wordinfo.info/words/images/faux-pas-2.jpg

The world's smallest violin

The world's smallest violin - When someone is whining and you are tired of hearing it, you can play the world's smallest violin to provide musical ambiance to dramatize their annoying whine. This is accomplished by rubbing your index finger and thumb together and saying, 

"This is the world's smallest violin, and it's playing just for you."

Image - http://i.pokeme.com/meme/img/00my.jpg

To fall on deaf ears

To fall on deaf ears - to be ignored or disregarded.

Example - "Their appeals to release the hostages fell on deaf ears"

Image - https://media.licdn.com/mpr/mpr/AAEAAQAAAAAAAAR1AAAAJDkwNjk2OTIzLTc1ZmUtNGU0NS1iNWRhLTI4MjY3ZTg1ZDYxNw.jpg