A completely useless individual who is unaware of his/her own complete uselessness.

A completely useless creature that does nothing but cause nuisance and aggravation.

Originally coined in the US Navy by sailors tasked with washing decks clean of the massive amount of avian excrement created by sea birds that shit all over everything.

Has come to define any living creature, human or otherwise, that is without redeeming qualities.

A military term used to describe an unsat Marine/Soldier/Airman/Sailor.

Comical but frequently used insulting military jargon generally used to denote a lower ranking enlisted person whose uniformed appearance and/or job performance is substantially unsatisfactory ('un-sat'). A person who can be counted on to screw-up the most simple of tasks, and generally not entrusted to handle much more than the menial. Also utilized among civilan population albeit with far less frequency and familiarity; does not resonate with same defamitory impact as when used in military circles.

Your above average asshole that usually will do things to piss you off or screw you up so they may further their own perceived wellness. Often also does things not knowing how much they are a screw up but again generally fucks you over.

From military slang and jargon. A term used to describe anything that is unacceptable or just downright shitass. Also a term of endearment for friends. See also: shitass

"Tweet tweet. Here comes the bird. The Shit-Bird!"

1. An uncommon insult that generally makes others laugh at the person being insulted.
2. Commonly used insult in US Navy bootcamp in Great Lakes, IL. Named after those little friggin Shit Birds that hop around all day, just eating and shitting. Eat, and .... SHIT. Eat and friggin Shit. They never sing, always shitting where you're about to do push-ups and even if you happen to stomp one, they're not big enough to eat. Damn shit birds.