Something that people often say when they talk about the past or something in the past, usually a few years back. The good old days when there were fewer things to worry about and less complex technology.
I remember hanging out with my old friends, playing Half-Life on the computer, and when Urban Dictionary was first created, simpler times!
A reference from a BBC Sci-Fi television series, where the main protagonist, the Doctor, tries to explain time to a character in the episode named Sally Sparrow. And describes that time is a big ball of "wibbly wobbly timey wimey stuff." Or a ball of time where you can take any path alter any time line. Which is true, proven by Astrophysicist, Neil Degrasse Tyson.
Now used to describe something as very confusing.