chanceblow

noun
UK /ˈtʃɑːns.bləʊ/
US /ˈtʃæns.bloʊ/

A chanceblow is a lucky hit that happens by accident.

He won the game with a chanceblow that nobody expected.


OTHER MEANINGS

2. A sudden, unexpected event that changes things by luck.

The chanceblow of meeting her old friend led to a new job.

3. A risky attempt that depends on luck rather than skill.

Investing all his money was a chanceblow he later regretted.

4. A random strike or impact that lands without aiming.

The falling branch was a chanceblow that missed the window.