strike it lucky

lightning strike

A (sometimes unofficial) strike by workers with little or no warning.

lucky break

A stroke of luck; a fortunate event, particularly of the sort that propels one to success, fame, etc.

lucky dip

A selection solely at random.

lucky dog

Someone with astounding good luck.

lucky duckling

Synonym of lucky duck.

lucky star

Something that appears to give a person luck

on strike

Withholding labor as a protest, in order to effect change in management or government.

strike a blow

To hit; to successfully land a hit.