Cliché

1. A cliché (US: /klɪˈʃeɪ/ UK: /ˈkliːʃeɪ/, from French), is a saying, expression, idea, or element of an artistic work which has been overused to the point of losing its original meaning or effect, rendering it a stereotype, especially when at some earlier time it was considered meaningful or novel. The term is frequently used in modern culture for an action or idea which is expected or predictable, based on a prior event. It is likely to be used pejoratively. A cliché may sometimes be used in a work of fiction for comedic effect.

The following are very commonly-used clichés.
Running around like a chicken with its head cut off.
It's been used to death.
I'm sick and tired of this.
I'm so hungry, I could eat a horse.

Clichés by Letter:
 
  Cliché
  A rose by any other name would smell as sweet
  Abandon ship
  About face
  Above board
  Absence makes the heart grow fonder
  Absolute power corrupts absolutely
  Ace in the hole
  Ace up his sleeve
  Achilles heel
  Acid test
  Acorn doesn't fall far from the tree
  Actions speak louder than words
  After my own heart
  Ah, to be young and foolish
  Airing dirty laundry
  All bent out of shape
  All bets are off
  All dressed up and nowhere to go
  All ears
  All for one, and one for all
  All hands on deck
  All hands to the pump
  All heck (hell) breaks loose
  All in a day's work
  All in due time
  All over the map
  All paled in comparison
  All talk and no action
  All that glitters is not gold
  All that jazz  
  All the bits and pieces
  All thumbs
  All work and no play, makes Jack a dull boy
  Alll wet, To be
  All's fair in love and war
  All's well that ends well
  Already got one paw on the chicken coop
  Altitude is determined by attitude
  Always a bridesmaid, never the bride  
  Always look on the bright side
  Am I my brother's keeper? Bible
  An apple a day keeps the doctor away
  An arm and a leg
  An idle mind is the devil's playground
  An oldie, but a goodie
  An ounce of prevention is worth a pound of cure
  Another day another dollar
  Another nail in the coffin
  Ants in his pants
  Any friend of yours is a friend of mine.
  Any port in a storm
  Anyhoo
  Anything goes
  Apple of my eye
  Are you a man or a mouse?
  Are you fair dinkum?
  Armed to the teeth
  Around the horn
  As all get out
  As beautiful as the day is long
  As dense as a London fog
  As far as the eye can see
  As good as gold
  As honest as the day is long
  As horny as a three balled tomcat
  As if!!
  As luck would have it
  As many Chins as a Chinese phone book
  As plain as the nose on your face
  As snug as a bug in a rug, To be
  As tender as a mother's heart
  As the crow flies
  As useful as a lead balloon
  As useful as tits on a bull  
  As welcome as a skunk at a lawn party
  As ye sow, so shall ye reap
  Ashes to ashes, dust to dust
  Ask me no questions and I'll tell you no lies
  Ask not what your country can do for you, but what you can do for your country
  Asleep at the wheel
  Ass backwards
  Ass over tea kettle
  At the crack of dawn  
  At the drop of a hat
  At the eleventh (11th) hour
  At the end of my rope
  At the end of the day...
  At the end of the pecking order
  At the last minute
  At wits' end
  Atta (That's a) boy
  Atta girl
  An Axe to grind