| Idiom | Meaning | Example | 
| chow | 
food, something to eat
 | 
I'm starved. Let's get some chow.
 | 
| chow down | 
eat, have a meal
 | 
I'm hungry. Let's chow down before we go to the movie.
 | 
| Christmas graduate | 
a student who leaves college at Christmas
 | 
Among the Christmas graduates last year was Gerard Kutz.
 | 
| chromedome | 
bald person, silkhead
 | 
Chromedomes can tell you the advantages of being bald.
 | 
| chuck it | 
put it in the garbage, junk it
 | 
We used to say chuck it, but now we say recycle it.
 | 
| chunk of change | 
(Seea chunk of change)
 | 
 | 
| ciao | 
goodbye, see you later
 | 
Ciao, Tony. See you in Rome.
 | 
| circles around you | 
much better than you,  no contest
 | 
Why do you play cards with her? She can play circles around you.
 | 
| circular file | 
garbage can or wastebasket, file 13
 | 
A lot of memos go in the circular file. They're garbage.
 | 
| claim to fame | 
what you have done to cause you to be famous
 | 
Besides passing math, what's your claim to fame?
 |