hang (someone) in effigy

Translations
сжечь чучело (кого-то) в знак протеста
The unpopular leader was hung in effigy by the protesters.
Непопулярного лидера сожгли в виде чучела в знак протеста.
Definitions
To create and display a dummy or image representing a person (often a disliked public figure) and hang it as a symbolic act of protest, anger, or condemnation, rather than harming the actual person.