Do you use the phrase "demonic smile" often on casual occasions?
Native speaker’s answer
Rebecca
No, the phrase "demonic smile" is not used commonly, and it is only used in this case to express that his smile was extra evil. It is more common to say "evil smile" or "evil grin" instead of "demonic smile". Ex: The actor has a good evil grin. Ex: She looked at me with an evil smile.