|crack this case
||solve a crime, discover who is guilty
||David will crack this case; he's a thorough investigator.
|crack under the strain
||become irrational or hysterical due to strain, around the bend
||Mother was a strong person. She never cracked under the strain of raising ten children.
||crazy, nuts, wacko
||He must be cracked. He mailed a letter to himself.
||crazy, bonkers, nuts
||Don't worry about me. I've been crackers all my life.
||a person who is strange or weird, wacko
||Some crackpot wrote a letter to him threatening his family.
||Drinking and driving causes a lot of crackups.
|cramp your style
||cause problems for you, cause stress for you
||If we can't buy a Corvette, will it cramp your style?
||a topic that causes anger, can of worms
||The Premier raised a crank issue and then went on holidays.
|crank it up
||turn up the volume, louder please
||Hey, Karen, crank up the radio. That's a great song.
||make, write, manufacture
||Can you crank out a few jokes for our school newspaper?