come out of the woodwork
US /kʌm aʊt əv ðə ˈwʊdˌwɜrk/
UK /kʌm aʊt əv ðə ˈwʊdˌwɜrk/
1.
to appear unexpectedly, especially in large numbers, after having been hidden or inactive
:
•
After the scandal broke, many critics came out of the woodwork.
•
Every time there's a problem, all the experts come out of the woodwork.