like the cat that ate the canary

US /laɪk ðə kæt ðæt eɪt ðə kəˈnɛəri/
UK /laɪk ðə kæt ðæt eɪt ðə kəˈnɛəri/
"like the cat that ate the canary" picture
1.

像吃了金丝雀的猫, 得意洋洋

looking very self-satisfied, especially after having done something mischievous or secretive

:
After he secretly took an extra cookie, he looked like the cat that ate the canary.
他偷偷多拿了一块饼干后,看起来像吃了金丝雀的猫
She walked like the cat that ate the canary after winning the lottery.
她中彩票后,走路像吃了金丝雀的猫