pop-up ads 

the pre-cursor to pop-under ads

when I closed the browser I found a thousand pop-under ads

pop-up ads by enlightened hippie breeder May 24, 2005

pop-up add 

Obnoxious internet adds which will pop up in new windows when a site with them is visited.

I hate pop-up adds!

pop-up add by Isaac Brown December 11, 2003

pop-up ad 

A window that pops up on the screen suddenly, often without warning, advertising something. Nobody ever actually buys what the pop-up is advertising. They're just annoying pieces of crap. Some people create ones that install malware or other unwanted files onto a user's computer.

In other words, an embodiment of Satan.

I clicked the download button for a file on Megaupload and a pop-up ad came up advertising a free iPad. I knew it had to be a scam, so I tried to close it, but it wouldn't close. So I had to close Firefox in Task Manager, but that closed ALL running Firefox processes, not just the pop-up ad. Freakin' annoying.

pop-up ad by anonymous159057430583057832057 December 26, 2010

Pop Up Traffic 

Is when you go to a web page and there are too many pop up ads to be closed. The reason why the internet sucks.

Adam: "I want to to listen to this song but these stupid pop up ads keep coming up."
Will: "You must be stuck in some Pop Up Traffic."
Adam: "Schist. This was a good site."

Pop Up Traffic by Julian Castro December 23, 2008

pop up on you 

Just show up on someone unexpectedly!

You didn't answer my phone calls all day. You must want me to pop up on you?!

pop up on you by Kayjonea February 4, 2017

pop-up party 

a pop-up party is a limited time only event that aims to dazzle and entertain the guests in attendance.

"Did you hear about that pop-up party happening at Kari's house?" Person A

"ya! I love pop-ups. We gotta hit that up!" Person B

pop-up party by Karielle21 December 12, 2013

pop up penis

a penis that gets hard fast

i have a pop up penis

pop up penis by miguel cannuli September 9, 2005