What is a cliche and what is a sentence that's an example?

have your ccake and eat it to.

http://www.thefreedictionary.com/Cliche

http://en.wikipedia.org/wiki/Clich%C3%A9

http://grammar.about.com/od/c/g/clicheterm.htm

Here's some examples:

Time heals all wounds.
When you have lemons, make lemonade.
What goes around comes around.

Its basically something that you hear all the time. They are a popular form of expression :)

A cliche is a phrase, idea, or expression that has been overused to the point of losing its originality or impact. It is typically considered unoriginal and predictable. People often use cliches as a shortcut to convey a familiar concept without putting much thought or effort into it.

For example, a common cliche is "time flies when you're having fun." This phrase is often used to express how quickly time seems to pass when engaging in enjoyable activities. However, due to its frequent use, it has become a cliche and lacks the freshness or creativity that an original statement would have.

To find examples of cliches, you can keep an eye out for repetitive and predictable phrases or expressions in everyday conversations, literature, movies, or songs. Pay attention to phrases that feel familiar and lacking in originality, as those are likely to be cliches.