
What is 52 Blocks? There is a lot of mystery surrounding the term “52 Blocks”, (a.k.a. 52 Hand Blocks, Jailhouse Rock (JHR), Jailhouse Boxing and the Bumrush) and for good reason. Its origins are not exactly mainstream and it still resides primarily in a sub-culture within a sub-culture. Ever heard of Mother Dear, Fat Cat, [...]












