Is it like the expression "shoot somebody a glance" in that it means to smile at someone briefly? I couldn't really find a dictionary explanation, but I've definitely seen the phrase before. Thanks in advance!
to direct suddenly or swiftly:
- Shoot the spotlight on the doorway. He shot a smile at his wife.
a look/glance/smile [transitive] cast (somebody) something to look, smile, etc. in a particular direction. "She cast a welcoming smile in his direction."
It is similar to the phrase "flash a smile" which compares a smile to a photograph or beam of light that triggers positive response from the target, except “shoot somebody a smile” includes an aiming component that will sometimes imply the ability to stun/paralyze/["smite"-slang] the target.