Source : Webster's Revised Unabridged Dictionary (1913)

Britisher \Brit"ish*er\, n.
   An Englishman; a subject or inhabitant of Great Britain, esp.
   one in the British military or naval service. [Now used
   jocosely]

Source : WordNet®

Britisher
     n : a native or inhabitant of Great Britain [syn: {Briton}, {Brit}]