A universal term that can describe anything at any given moment. This is only a term to describe something positive that brings enjoyment to one's day.
1) Did you see that diggy doo? She has a greatset of diggy doos!
2) I took the day off to go fishing, what a diggy doo!
Originally starting as the acronym ISHYGDDT (I sure hope you guys don't do this) on 4chan, the acronym was later extended to 'Shiggy Diggy Doo'. When the term first came into use, many newfags thought it was also an acronym, so it was often said as 'I SHIGGY DIGGY', which was implied as an acronym for 'I sure hope I go get young dogs in good gay yelps', which was a reference to the massive amount of furry pornography that flooded the site during that time. Even today, the phrase is in use on many mainstream internet sites such as 4chan, reddit, tumblr, digg, funnyjunk, and facepunch.
Guy 1: Hey dude, I just bought myself a pack of ciggs. Want one?
Guy 2:
>Any year
>Not smoking weed instead of pleb-tier cigarettes >Shiggy diggy doo
When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).