Semper Fi

Semper Fi is short for the Latin word Semper Fidelis.  This means "always faithful."  It is known as the motto for the USMC.  The USMC adopted the saying in 1883 by Colonel Charles McCawley.  It is also the title of the official march of the USMC.  It is very common to see the shortened version of Semper Fidelis all of USMC apparel, tattoo's, banners, flags, etc.  It is the official slogan of the USMC.  OORAH!