The initial idioms of the letter C

catch someone's eye	catch something
catch the drift	catch the eye of (someone)
catch the next wave	catch the sun
catch the wave	catch to it
catch up in	catch up on
catch up to (something or someone)	catch up with (someone)
catch up with	up with
catch up	get wind of
catch with	catch with pants down
catch you later	Catch-22
catch-as-catch-can	softly, softly, catchee monkey
catch	catch a weasel asleep
catch (on) fire	catch it in the neck
catch the eye	catching
cater to	catfish