| Idiom | Meaning | Example | 
| discombobulated | 
disturbed, bothered, upset
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When my dog hears a train whistle, he becomes discombobulated. He barks and howls.
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| discretion is the better part of valor | 
be sensible when you are brave; be courageous but not reckless
 | 
In all your battles, be brave but not foolish. Discretion is the better part of valor.
 | 
| dish | 
(See what a dish)
 | 
 | 
| dish it out | 
criticize, complain
 | 
Jay can dish it out, but she gets mad if you criticize her.
 | 
| disk jockey (DJ) | 
radio announcer who plays recorded music
 | 
Clare became a disk jockey with a radio station in Moose Jaw.
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| ditch him | 
leave him, lose him, give him the slip
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I tried to ditch him at the mall but he held on to my hand.
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| ditto | 
repeat it, write or say the same thing, back at ya, same to you
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"You jerk!" "Ditto!" "You creep!" "Ditto!" "Ditto!" 
"Double ditto!" "What!"
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| ditz | 
fool, an airhead, jerk, nerd, nut
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You ditz! You put ketchup on my ice cream!
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| do (a speed) | 
travel at a speed, drive at a speed of
 | 
We were only doing 50 km per hour. That's the truth.
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| do | 
(See hairdo)
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