Best definition
From the Hindi language as seen on Asia TV. The true definition is unknown, but it has been redefined

as follows for the English language:
1. Butter on the edge of a water glass; typically found at a greasy spoon like Tee-Jay’s.
2. The funky aroma that a busboy (who also works at Tee-Jay’s) eminates after a hard day of smearing butter on the edges of water glasses.
NOTE: Zamoti is typically native to Ohio, but sightings have been made in western Pennsylvania and the deep south.

Dude, I went to Tee-Jay’s and there was zamoti all over my water glass!