camp follower (camp followers plural ), camp-follower
1 n-count If you describe someone as a camp follower, you mean that they do not officially belong to a particular group or movement but support it for their own advantage., (disapproval)
...the Tory leader's friends and camp followers.
2 n-count Camp followers are people who travel with an army or other group, especially members of soldiers' families, or people who supply goods and services to the army.