cat that ate the canary

Alternative forms

 * cat that swallowed the canary

Noun

 * 1)  A person who appears self-satisfied or smug, especially while concealing something mischievous, prohibited, or private.
 * 2)  A person whose appearance and behavior suggest guilt mixed with other qualities, such as satisfaction or feigned nonchalance.
 * 1)  A person whose appearance and behavior suggest guilt mixed with other qualities, such as satisfaction or feigned nonchalance.
 * 1)  A person whose appearance and behavior suggest guilt mixed with other qualities, such as satisfaction or feigned nonchalance.
 * 1)  A person whose appearance and behavior suggest guilt mixed with other qualities, such as satisfaction or feigned nonchalance.