dig somebody out of something

Từ điển Oxford Advanced Learner 8th

ˌdig sb/sthˈout (of sth) derived
1. to remove sb/sth from somewhere by digging the ground around them or it
•More than a dozen people were dug out of the avalanche alive.
2. to find sth that has been hidden or forgotten for a long time
•I went to the attic and dug out Grandad's medals.
Main entry: ↑dig_derived