Can be related to a sweet tooth with sweets, just with sex. A compulsive wanting to fuck when you see a hot girl.
I've got a fucktooth.
by Sandy Cline January 15, 2005
A saying in which a person has a gap between their two front teeth.
Look At that Fuck Toothed bitch!
by ZGold April 06, 2009
An exclamation used to express anger when you cannot come up with anything more creative than putting two words together that have nothing to do with each other.
Shutup you stupid fucktooth!
by thewhiteguy May 25, 2003
A general insult for a fucking ugly person
Tim T-bone is such a fucktooth
by Tosser Dave May 10, 2003