Karl's definition of pop up for experiment 2 of DESN285.
1.Annoying windows which seem to spontaneously appear while on the internet. Used by web companys to make money to pay for their website and to generally piss the common internet user off.
2.Pop up is also a much simpler way to explain abiogenesis (spontaneous generation), which is when a living thing or an object suddenly appears. Is the reverse of spontaneous combustion.
1."I hate using the internet these days, there are so many pop ups everywhere"
2."Shit!! look over there, that guy just popped up out of no where"