He looks like the cat that ate the canary after his prank.
cat that ate the canary
idiomA person who appears self-satisfied or smug, especially while concealing something mischievous, prohibited, or private.
She walked into the room with a smile like the cat that ate the canary, clearly hiding a secret.
With a look reminiscent of the cat that ate the canary, he sat silently, savoring the knowledge that his rival had finally been outmaneuvered.
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bell the cat
To undertake a dangerous action in the service of a group.
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canary fit
A highly emotional state of distress, anger, etc.
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canary in a coal mine
Something whose sensitivity to adverse conditions makes it a useful early indicator of such conditions; something which warns of the coming of a greater danger or trouble by a deterioration in its health or welfare.
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cat and dog life
An unhappy married life marked by arguments and disagreements.
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cat got someone's tongue
Why is someone not saying anything?
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cat in the meal-tub
Something concealed; a hidden danger.
- 07
cat piss
Any beverage of low quality.
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cool cat
A person who performs or appreciates jazz, especially one whose style of speech and movement is relaxed and rhythmic.