poptop

Poptop is a term used in several domains, typically as a compound of "pop" (sound of opening) and "top" (lid or roof), and is found in beverage packaging and recreational vehicles, among other uses.

In beverage packaging, pop-top or pull-tab refers to the opening mechanism on cans. Earlier designs used a separate tab that punctured the can lid; later versions used stay-on tabs to reduce litter and injuries. The term pop-top remains widely used in colloquial speech, though manufacturers often specify "pull-tab" or "stay-on tab." The mechanism allowed one-handed operation and contributed to the popularization of canned beverages in the mid-20th century. Over time, most modern cans use a stay-on tab.

In recreational vehicles, a pop-top (also pop-up) refers to a type of caravan or camper van with a roof section that can be raised to add headroom and sleeping space. When closed, the vehicle is compact for travel; when opened, the canvas or rigid roof unit is raised to create extra interior space. Pop-top campers are common in light-weight caravans and some tent trailers, offering a balance of maneuverability and living space.

Other uses include brand names and product lines in various industries, where "poptop" is used to convey ease of access or elevated design. Variant spellings include pop-top, poptop, or pop top depending on region and context.