Mutts (New York Mets derogatory nickname)
The New York Mets baseball team is sometimes called the “Mutts” (dogs), usually by Yankee fans or other non-fans of the club.
http://www.urbandictionary.com/define.php?term=mutts
mutts
a term used to insult the mets
The mutts stink.
by terrell mateo Jun 7, 2003
Google Groups: rec.sport.baseball
From: JOSEPH ALOYSIUS MCVEIGH
Date: Wed, Jul 8 1992 3:06 pm
Joe Baldino, Mets fan, has a strong feeling that the Mutts will win the East.
Google Groups: alt.sports.baseball.atlanta-braves
From: G. M. Lupo
Date: Tues, Aug 10 1993 8:43 pm
The Braves are in New York tonight playing
the Mets, now being called by some commentators up here “the Mutts”.