Hearing
Hear something through the grapevine - to hear the news from someone who had heard the news from someone else
You'll never hear the end of it - to not know the end of a story or a statement
You could have heard a pin drop - to be in a very quiet setting
Can't hear yourself think - not being able to hear anything because of the noise
Heard the last of someone/something - to not be bothered by something/someone anymore
Sight
To see red - to be mad or angry
See something through - do something until it is finished
See someone out - to go to the door with someone who is leaving
See someone in the flesh - to see someone for yourself
See stars - to seem to see bright flashes of light
Touch
Get in touch - be able to communicate with someone
Out of touch - no longer in communication with someone
Touch down - to reach the ground
Hit/touch a raw nerve - to upset someone by talking about a particular subject
be an easy/soft touch - easy to persuade
Smell
Smell something fishy - feel that someone is being dishonest or something bad is on the rise
Smell/stink to high heaven - smell very bad
Come out smelling of roses - people believe you are good after a difficult situation that could have made you look bad
Wake up and smell the coffee - to pay attention
Pass the smell test - to be morally acceptable
Taste
To give someone a dose/taste of their own medicine - to do the same bad thing to someone who has often wronged you, in order to make them feel how unpleasant it was
Have tasted blood - achieved a small victory
Leave a bad taste in your mouth - having a bad memory of something
There's no accounting for taste - not being able to understand why a person likes someone/something
Source:
http://idioms.thefreedictionary.com
