1. [noun] The female genitalia. Probably originated from performing the act of oral sex on a woman who doesnt trim often, However it can also apply to a female with any legth and/or style of pubic hair. \r\n\r\n2. Used to describe the unsatisfactory attitude or demeanor of another.\n> 1. I had a little hairburger on my lunch break but no sex.\n> 2. Man you are such a hairburger.\n