This acronym was originally developed in the town of Melbourne, Australia in mid 2006 as a means of describing a strongly unpleasant, offensive, or undesirable female, or a female displaying qualities considered highly undesirable at a given moment.
The beauty of this term is its adaptable nature, and its subjective application.
Also, this term allows one to use a highly offensive term towards someone, in a fashion that does not sound offensive. To this end it is often found in use in offices, professional environments, and there is also one unsubstantiated account of this term being used in a Supreme Court towards the presiding judge.
"That Candace is a fair-dinkum COAT, isn't she Bryce!"
"I had to get out of the house for a while Brad, the missus is being a COAT..."
"I cant believe you baby; you are really acting like a COAT right now. Pull your head in!"
Her - "Youre such a bastard....just buy me an engagement ring already, it's about time after 4 years together..."
A person of the opposite sex who, when attending social events, requires less maintenance than a coat in order for you to get them to come home with you.
"Liz is Rob's coat. When he goes out, he leaves her at the door and hits on other girls with his friends. But when it is time to go home, he grabs her at the door like she is his winter coat."
The most dominant of all types of people. Well versed and extremely good-looking. Humorous by nature with a desire to party.
"I was feeling so proud of myself, I felt like a Coates!"
"The room was so nice, it was fit for a Coates."
"The lion king was the Coates of the pride."