the coast is clearinformalSAFE if the coast is clear, it is safe for you to do something without being seen or caught 〔做某事〕没有危险,危险已经过去the coast is clear• We raced out the door as soon as the coast was clear.• Or do you wait till they tire of the taunting and go to release the victim when the coast is clear?
→ the coast is clear at coast1(1)