adj. n. 1.being predictable and unimaginative; falling into a groove of human boredom; an old tired trend.

Something that has been overdone to the point where it is now predictable. A fad that has either died or is dying out.

Something that is lame and unimaginative, and, more importantly, has been done many times before.

a phrase used to the point of no meaning or importance, ironic because its intended to make an impact

A very common used phrase by people trying to get a point across without saying much.

Almost every line in the Twilight series.

ok i thought i would describe some of the most known cliches in our school,
preps, absolute mother fuckers tbh. they come fromrich families and cheat there way into good grades. they spend most of their time getting fingured and drinking pimms. they wear designers such as jack wills and abercrombie and fitch. it generally looks horrible. there very two faced and bitch about all their friends behind their backs.
scene kids, bloody annoying they all try to be 'original' yet they're all copying each other. and they never actually admit to being scene. emos generally are all depressed fall in love every five minutes and listen to shitty music, chavs listen to awful music wear to much makeup too slutty clothes get too drunk take drugs. so when you go to school be your self and AVOID joining cliches :P