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User Control Panel; usually found on internet forums.

The User CP allows each user to customize their preferences, change their avatar, read messages, subscribe to threads, view their bans and infractions, join usergroups, and so on
Since I went on holiday, my User CP is full of unread messages
by Sayang July 24, 2009
A secret stash of CP found on most forums.
Every forum that uses VBulletin has free User CP.
by w8baby April 20, 2010