Used to describe the look on someone’s face when they are satasfied with something they’ve done, said, or experienced...
Person One: *Finishes Puzle*
Person Two: Well don’t you look like the cat that ate the canary...
by TheCrunchy October 18, 2018
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Self satisfied, pleased with one’s self.
My son looked like a cat who ate the canary when we found him with a plate of cookies.
by February 25, 2022
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