Slang word used to describe women that have an abnormally large gap in between their two front teeth causing a chemical imbalance that leads to the profuse want of anal sex.
Dude, did you fuck that gaptooth from the bar the other night?
Hell yeah! She wanted profuse amounts of anal sex!
a space between the two front teeth on the upper row of teeth in a male or females mouth. having a gap is considered a sex symbol (like beauty marks) and attractive. Recently, having a gap has been associated with overly sexual people, so to hear a girl being called a slut because she has a gap is not uncommon. Gaps are cute on girls and modelesque on men. Most people with gaps are sexually attractive.
Lara Stone, Tyler Fuchs, Anna Paquin, Michael Strahan, Madonna, Georgia May Jagger. All have gap tooth mouths.