Real Dictionary

come home to roost chickens come home to roost
phrase: If bad or wrong things that someone has done in the past have come home to roost, or if their chickens have come home to roost, they are now experiencing the unpleasant effects of these actions.

come home to roost in British English
if something bad or unacceptable that someone has done comes home to roost, they will now have to deal with the unpleasant results of their actions
to have repercussions, esp. disagreeable ones; boomerang
to have unfavourable repercussions
to revert or react unfavorably to the doer; boomerang