(adj/noun)being and ignorant dick/ass/bitch; often used as a comeback towards critisizm or in place of a noun.
turbett says,"Your so gay".
then you respond with,"your such a stupid fucking dickhole cocktooh asmunching cockworshiping cockmunk mother fucker that no one likes/loves or ever will like/love".
HEY COCKTOOTH! GET OVER HERE.
YOUR A COCKTOOTH
Much like a sweettooth where the person craves sweets like candies or cookies, the person being referenced is a male who has a craving for the male penis.
she doesnt trust her boyfriend to be alone with other guys, she says he has a cocktooth.