a person with a big chin that sticks out of their face.
(a girl with a big chin walks in a bar)...look at that cowher girl!
by Chris Russell October 25, 2003
1 more definition
the best god damn coach in the best god damn city coaching the best god damn football team in America
Bill Cowher and the jaw did an awesome job this year, Pittsburgh's goin to the Superbowl
by donny iris January 26, 2005