jagwire Share definition Flag The (mis)pronunciation of the word "jaguar" when said by a Pittsburgh native. The Steelers got beat by the Jagwires (Jacksonville Jaguars) in the playoffs. jagwire by Ben Rotfdhkgkjfsfdgjkaeiger January 15, 2008 0 0 Get merch Get the jagwire mug. Buy Now — $32.95 See more merch