What is Pop-up?
1.
something that appears suddenly or unexpectedly
Sex education books should have a pop-up section.
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2.
get hard, become erect, refers to a penis
pick up line:
"Hey baby why dont you come sit on my lap and we'll talk about the first thing that pops up"
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3.
A foldable camper that kicks ass. A place for teens to smoke, drink, and get high off their ass! I definitely wanna road trip that thing.
"Yo, let's go get baked in the popup! Then we can get drunk too!" - EVERYONE
4.
An advertisement that pops up on your computer screen when you least expect it.
This pop-up stopper is a joke!
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5.
A ball hit high in the infield.
Silly Jim Hunter, pop-ups aren't to the warning track!
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