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1.
A user interface control which reveals a hidden joke or image when the control is used to vote in favor of a proposal, joke, work of art, etc.
Coined by Zach Weiner (creator of the web comic "Saturday Morning Breakfast Cereal") to provide incentive for visitors to vote up his comic's rating. The voting has ceased, but the button still reveals a bonus drawing or comic panel to follow up the content of the main comic of the day. The name "votey" has stuck, even those there is no longer voting associated with this control.