Abbreviation for "Manslaughter in the First Degree."

A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.

A girl that IS NOT prude, however not a slut. She's gorgeous and kind. You could talk to her for hours without ever getting bored, and you can't help but open up to her.