Augean stables
noun /ɔːˌdʒiːən ˈsteɪblz/
/ɔːˌdʒiːən ˈsteɪblz/
[plural]- (in ancient Greek stories) the very large stables which Hercules cleaned in a day by making a river flow through them, now often used to refer to a situation where there is a lot of dishonest or illegal behaviour