From Longman Dictionary of Contemporary Englishlackeylack‧ey /ˈlæki/ noun [countable] OBEYsomeone who always does what a particular person tells them to do – used to show disapproval
Examples from the Corpus
lackey• Some poeple in the UK were worried that their country might be regarded as simply being a lackey of the US• Many employees regarded Human Resources staff as little more than management lackeys.Origin lackey (1500-1600) French laquais 