Popup or pop-up could refer to: Pop-up ad, a form of web advertising that appears in a new window Modal window, or pop-up dialog boxes Hidden headlamps, also called pop-up headlamps Popup menu, an element of computer interface Batted ball, a type of hit ball in baseball Pop up book, or movable books Popup camper, a type of recreational vehicle "Pop up" or "Pop up graphics", a phenomenon of 3D video games related to draw distance Pop-Up, Yelle's first album… (More on Popup)