look like the cat that ate the canary

look like the cat that ate the canary

1. To appear smug and/or overly pleased with oneself to others, especially over something one has done, received, or accomplished. After her promotion, Janet spent the rest of the day looking like the cat that ate the canary.
2. To have the appearance of guilt but attempt to hide behind an air of smugness or feigned nonchalance. When questioned on the use of campaign funds for his own personal pleasure, the senator looked like the cat that ate the canary.
See also: ate, canary, cat, like, look

look like the cat that ate the canary

Also, look like the cat that swallowed the canary. Appear smug and self-satisfied. For example, After she hit her third winning shot, Jeannie looked like the cat that ate the canary. [Second half of 1800s]
See also: ate, canary, cat, like, look