CARRY COALS TO NEWCASTLE
MEANING : To do something unnecessary
CARRY THE WEIGHT OF THE WORLD ON YOUR SHOULDERS
MEANING : To be burdened by all the problems in the world
CAST PEARLS BEFORE SWINE
MEANING : To waste something good or valuable on someone who won't appreciate or understand it .
CAT GOT YOUR TONGUE
MEANING : Is there a reason that you're not speaking ?
CHEEK BY JOWL
MEANING : Very close together , side by side
CLOSE SHAVE
MEANING : A very narrow escape from danger
COLD FEET
MEANING : A fear of doing something
COLD SHOULDER
MEANING : Unfriendly treatment of a person by ignoring him or her
COLD TURKEY
MEANING : The sudden stopping of any habit
COME OUT OF YOUR SHELL
MEANING : To stop being so shy ; to become more friendly .