Definition of pop-under in English:

pop-under

adjective

Computing
  • Relating to, or denoting an additional window, usually an advertisement, that is under a web browser's main or current window and appears when a user tries to exit.

    • ‘When is the last time you read a pop-up or pop-under ad?’
    • ‘What this means is that there will be no pop-up or pop-under ads.’
    • ‘The latest pop-window trend to hit the Internet is the pop-under window.’
    • ‘One suggestion I have had is to use a pop-under window, but I find them annoying and don't want to annoy other people.’
    • ‘These links will take you to the ‘opt out’ feature of the respective ad server and prevent those annoying pop-up and pop-under adverts.’
    • ‘In terms of display ads, the banner has been supplanted to a certain extent by pop-over and then pop-under ads with the idea that bigger is better and maybe the element of surprise will help.’
    • ‘More annoying than a little kid with a drum set: Those pop-under ads that have exploded into use on the Internet may become a little less common.’
    • ‘According to that report advertisers purchased and launched more than 11.3 billion pop-up ad impressions (including pop-under ads) during the first seven months of 2002.’
    • ‘Ads are becoming more intrusive: Stealthy pop-under ads, rich media ads that enable animated objects to cross your screen, spyware masquerading as ads, and junk email annoy consumers.’
    • ‘Pop-up ads and their newer incarnation, the pop-under ad, are often not appreciated by users on the Web.’