Top Definition
the most insulting thing you can call a person, towards the end of 2010 it has caught on. people now use it to describe grimey assholes who are utter scum of the earth, it is by far the most degrading thing to be called.
why would u punch a baby? you are such a scumtooth!
by miriam webster official September 13, 2010
Yuck Mouth
A dirt bag with a bad oral hygeine.
That guy was such a scum tooth, did you see his teeth?
by hmckath July 19, 2008

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