Definitions by The one and only Biggs

boot grinder 

When one takes his/her fork and scrapes food off of it only using the bottom teeth as if scraping excriment off the bottom of your boot on a curb.

Austen: Did you see how that dude ate his food?
Nick: Yea what a fucking boot grinder!

boot grinder by The one and only Biggs December 10, 2015