snaggletooth
noun
snag·gle·tooth ˈsna-gəl-ˌtüth 
: an irregular, broken, or projecting tooth
snaggletoothed
ˈsna-gəl-ˌtütht
adjective 
Word History
Etymology
English dialect snaggle irregularly shaped tooth + English tooth
First Known Use
circa 1825, in the meaning defined above