fall out of (someone's) lap

Translations
вывалиться из (чьих-то) рук
The opportunity just fell out of my lap.
Возможность просто вывалилась у меня из рук.
Definitions
To accidentally drop or slip from a person's lap, typically while they are sitting down. It can refer to an object or sometimes a pet or child that was resting on someone's lap and then falls off.
Words
fall

verb
падать
out

adverb
наружу
of

preposition
из
someone's

pronoun
чьих-то
lap

noun
колен