Sockpuppet

An online identity built to deceive. It is also used to get around blocking or banning someone's original email or social media account.

Any small model of a person or animal that can be moved with ropes or poles, or in the shape of a glove.
A person, country, etc. controlled by another.
A doll is a small image in the human form of a doll.
Vertical support for lathe spindle bearing.
Doll made with a sock that is carried in the hand.
An alternative pseudonymous online account, especially one used for offensive purposes.

sock