a person highly skilled in the use of a gun and a veteran of many gunfights, especially one living during the frontier days of the American West.
That old man is dangerous... He's quite a Gunfighter!
by Billy Kid March 14, 2015
1 more definition
A person of homosexual persuasion
"Ah mate he's a propper gunfighter! He gave me a shot in the dark!"
by Lunatic_Woodlouse February 12, 2005