1 definition by Ted Blake
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."
by Ted Blake June 26, 2003