You've seen the movie: Grandmaster Maurice Ashley plays NYC trash talker - The Tim Ferriss Experiment (youtube.com; GM Ashley's channel; 1.199.609 views and counting):-
I was schooled by the best hustlers back in the day! This was actually in Washington Square Park where the late great Vinnie Livermore used to beat my ass at that same table!
You've read the reviews: Watch a Trash-Talking Chess Player Realize He Is Playing a Grandmaster (time.com), Maurice Ashley - trash talk chess in NYC park (chessbase.com),... Now here's the Flickr Friday photo!
Grandmaster Maurice Ashley vs. Washington Square street chess hustler © Flickr user Katexic Publications under Creative Commons.
Just one more reason why Ashley belongs in the chess hall fame: 2016 Inductees to U.S and World Chess Halls of Fame Announced.