Pronunciation: (pop'top"),[key] —adj. (of a can) having a top with a tab or ring that when pulled up or off exposes a precut hole or peels off the entire lid.
—n. 1. Also,pop' top".a can having such a top: drinking beer from a pop-top. 2. the top itself.
3. the tab or ring fastener, esp. when removed from such a can: a vest made entirely of pop-tops. Also called pull-top, flip-top.