When a gigantic piece of crap has been lovingly nurtured and has reached its final level of growth and development. At the end of this stage it's evacuated from the safe, warm environment that is the bowels. Coined in the South Park episode "More Crap".
In real life, the turd trimester can be compared to the status of pulling tongues.
As a doctor I cannot condone travelling on an airplane in your turd trimester. It is not safe.
A generic catch-all for THAT guy in your friend group: always at his place, his terms, on his time. The "Tom" can be cordial or a total asshat. Regardless, it's his way.
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!