C

Can’t Cut The Mustard :
Someone who isn’t adequate enough to compete or participate.

Cast Iron Stomach:
Someone who has no problems, complications or ill effects with eating anything or drinking anything.

Charley Horse:
Stiffness in the leg / A leg cramp.

Chew someone out:
Verbally scold someone.

Chip on his Shoulder:
Angry today about something that occurred in the past.

Chow Down:
To eat.

Close but no Cigar:
To be very near and almost accomplish a goal, but fall short.

Cock and Bull Story:
An unbelievable tale.

Come Hell Or High Water:
Any difficult situation or obstacle.

Crack Someone Up:
To make someone laugh.

Cross Your Fingers:
To hope that something happens the way you want it to.

Cry Over Spilt Milk:
When you complain about a loss from the past.

Cry Wolf:
Intentionally raise a false alarm.

Cup Of Joe:
A cup of coffee.

Curiosity Killed The Cat:
Being Inquisitive can lead you into a dangerous situation.

Cut to the Chase:
Leave out all the unnecessary details and just get to the point.

Bruce Larkin