Inevitably, there will be some speculation as to the definition of "shitbird". This post serves to clarify what exactly is meant by the word.
The exact origins of "Shitbird" are unknown, however, the term is generally thought to have originated at some point during the illustrious history of the United States Marine Corps.
A shitbird, quite simply, is a fuckup. It's someone who doesn't pull his own weight. Think Private Pyle in "Full Metal Jacket". Unfortunately, these sort of people are the sort who never seem to suffer the punishment for their transgressions, everyone else has to suck it up for these people's sins.
In essence, a shitbird is a parasite, a foul pile of shit who screws up everyone else's groove without suffering for it.
The cure for shitbird is PAIN. The more pain the shitbird suffers, the less incentive they have to continue their current course of action. Unfortunately, there are some people out there whose shitbird characteristics are so ingrained within their soul that they are essentially incurable by mere amateurs. Only Drill Sergeants have the proper attitude, the motivation, and the 24/7 commitment it takes to cure the most shitbird of shitbirds.
If you think you might be a shitbird, you probably are one. It would behoove you to stop. If you think you know a shitbird, you probably do, and it's up to you to help cure them for society's benefit.