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.
Man, Chris is such a shit bird. Every time we watch a movie, he keeps shitting on the film while we watch it.

Scott keeps talking shit behind everyone's back. He's such a shitbird .
by XyloboneX889 April 30, 2018
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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.
"Hey shitbird, stop vandalizing all the bathrooms
by The Xan Man February 28, 2019
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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.
"The shitbirds fucked up every single bathroom in the school so now we have to shit outside"
by Xanax Man December 10, 2018
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A score of 26 in darts acquired by shooting a 1,20 and a 5 in no particular order.
Dave Chisnall shoots a lot of 180s, but never I've never seen him shoot a shitbird!
by Spasman June 10, 2020
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