Originates from the ye old mainer up alone on his porch talkign about the passer byers. Commonly used with the term little infront of it.

when a big giant rock lands on your foot! the first thing out of your mouth is "shit bird". It usally means you had a small stroke of instant bad luck.

one who eats his own shit

Moronic person, irrelevant person, person that makes a complete ass of themselves

A person who "shits" all over your favorite things you might like. Originally meant for a useless thing/person, it comes to mean a n assholes who treats the things you like like trash.

It can also be applied to people who talk

Negatively about others, wether it be behind their back or in front of their face.

Someone who likes to get hopped up on drugs and vandalize their school's bathrooms with drawings, toilet paper, explosions, etc. All shitbirds worship the lizard gods and the lizards tell them to spread their religion to their school via sharpie. Never hand a shitbird a sharpie, if you do he/she will immediately leave the room and the next time you walk into a bathroom there will be lizards everywhere. Taking prescription benzos can lead to you becoming a shitbird and if you take these drugs, you will likely wake up in the middle of a bathroom full of lizard drawigs, covered in ink.

An unorganized group of small time drug dealers, drug users, bathroom vandals, and other delinquents who have no other goal than to do as much damage as they can to school and government property. The most infamous shitbird The Xan Man is responsible for the dozens of graffiti attacks in school bathrooms, where drawings of lizards cover the bathrooms.