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1.
It's when after a heavy night of drinking and smoking cigarettes, you have a gross film on your teeth that feel like sweaters...
I woke up and had sweaterteeth on!
by spectralux December 13, 2009
 
2.
when your teeth get that fuzzy, "sweatery" feeling after drinking coke
Coke gives me sweater teeth everytime.
by florence lawrence April 12, 2008