Mtindohuru ni mtindo wa kubuni au kutoa maneno kichwani iwe na biti au bila biti, ambapo mashairi yake yanatoka kichwani tu, yaani, hayajawahi kutungwa hapo awali, "mwanzo mwisho mzigo unatoka kichwani tu". Kevin Fitzgerald (director), Freestyle: The Art of Rhyme, Bowery, 2000. T-Love, "The Freestyle", in Brian Cross, It's Not About A Salary..., New York: Verso, 1993. Gwendolyn D. Pough, 2004, Check It While I Wreck It, UPNE, p.224 Murray Forman, Mark Anthony Neil, 2004, That's The Joint!, Routledge, p.196 Raquel Z. Rivera, 2003, New York Ricans From The Hip-Hop Zone, Palgrave Macmillan, p. 88 Edwards, Paul; Kool G Rap (foreword) (December 2009). How to Rap: The Art & Science of the Hip-Hop MC. Chicago Review Press, 340. ISBN 1-55652-816-7.  Kool Moe Dee (November 2003). There's A God On The Mic: The True 50 Greatest MCs. Thunder's Mouth Press, 224. ISBN 1-56025-533-1.