A chemical emitted by the
brain while writing code late at night. The more
one continues to code, the more awake
one will feel despite the fact that it becomes further and further past one's bedtime.
Alice: So I was up coding last night, trying to finish that big project for Monday, and by
the time I finished at 4:00am I just wasn't able to go to sleep.
Bob: Yeah, that's the codeffeine.