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1.
NHB
No Holding Back
Let's do this. NHB.
by Cele22 July 29, 2011
 
2.
NHB
Stands for No Holds Barred fighting. NHB is simply a fighting sport and style which has very few rules.
An example of this would be the UFC or the Ultimate Fighting Championship league. NHB fighters often win a match by submission, KO, or TKO.
by TonTon May 03, 2005