ghojmeH Taj
 
          This is the first knife that is given to a Klingon.  It is usually in boyhood that a Klingon will begin his weapons training.  Everything from knife fighting to martial arts to betleH' training begins at what is known as "The Age of Inclusion".  This is also the time when the future warrior receives his ghojmeH Taj, which translates out to be "The Knife of Learning".  The young Klingon will train, eat, sleep, and go to the lavatory with this knife until he has mastered it, and himself.  Only after this is done and the First Rite of Ascension is passed, does the boy become a Warrior, and receive his first daqtagh("Warrior's Knife").

References: Star Trek: Klingon CDROM