A sockpuppet is a term used to refer to a someone who has created another account to cause a problem on a wiki. This may be to avoid a block, post vandalism, harass another user or create drama. Multiple accounts are allowed on Wikia, but they should not be used to deceive others. Local wikis may have a specific policy related to multiple accounts, so it's important to also refer to local wiki account policies.
If it is found that you are abusing multiple accounts to cause trouble, those accounts may be closed by staff. All questions regarding account information should be submitted to Special:Contact.