pop-top

[pop-top]

adjective

(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.

noun

Also pop top. a can having such a top: drinking beer from a pop-top.
the top itself.
the tab or ring fastener, especially when removed from such a can: a vest made entirely of pop-tops.

Origin of pop-top

An Americanism dating back to 1965–70

Also called pull-top, flip-top.