Popping up means appearing or emerging suddenly, often unexpectedly or briefly. It can describe alerts on a screen or issues that arise during work or travel. It also refers to short-lived events like pop-up shops that appear and then vanish.
New security loopholes are constantly popping up because of wireless networking. The cat-and-mouse game between hackers and system administrators is still in full swing. Kevin Mitnick
Tech people like to stick to their knitting, and they measure their accomplishments by the growth of their company. Now the tech community is popping up and saying, 'We do need to be involved in our surroundings.' Ron Conway
'9 to 5,' that little song, that little story, just won't ever end. Just like 'I Will Always Love You,' it just keeps comin' back, popping up its head in one way or another. Dolly Parton
Games are work. There are economies popping up in games now because people value them. Jane McGonigal
As my mind can conceive of more good, the barriers and blocks dissolve. My life becomes full of little miracles popping up out of the blue. Louise L. Hay