bank shot

US /ˈbæŋk ˌʃɑːt/
UK /ˈbæŋk ˌʃɑːt/
"bank shot" picture
1.

a shot in basketball that bounces off the backboard before going into the basket

:
He scored with a perfect bank shot from the baseline.
Practice your bank shots to improve your accuracy.
2.

an action or plan that is intended to achieve a desired result indirectly or by taking advantage of an unexpected opportunity

:
His clever negotiation was a real bank shot, getting them to agree to terms they initially rejected.
The company's new marketing strategy was a bank shot, unexpectedly boosting sales through social media.