| Idiom | Meaning | Example | 
| cow-pie | 
cow shit [B] cow dung
 | 
Watch where you step. There are cow-pies everywhere. Oops!
 | 
| cowpoke | 
a cowboy, a man who works on a ranch
 | 
Three cowpokes were herding some cattle down the road.
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| Cowtown | 
Calgary, Alberta; a town where cows are sold
 | 
The Calgary Stampede is the pride of Cowtown. Y'all come!
 | 
| crack a book | 
study, read a textbook
 | 
Sean passed that exam without cracking a book.
 | 
| crack a joke | 
tell a joke, say a funny word or phrase
 | 
Please be serious. Don't crack jokes or laugh at us.
 | 
| crack down on | 
stop, not permit, not allow
 | 
The police began to crack down on speeders in the school zones.
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| crack me up | 
make me laugh hard, split a gut
 | 
Robin Williams cracks me up when he tells a story.
 | 
| crack of dawn | 
(See at the crack of dawn)
 | 
 | 
| crack shot/salesman etc. | 
a person who is highly skilled at shooting etc.
 | 
Marvin has developed into a crack salesman. He's excellent.
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| crack the line-up | 
earn a place on a team, make the team
 | 
He's a good basketball player, but can he crack the line-up?
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