Human defintion: The Opp Block, often referred to as Opps Endz is the home of the 'opps' (opposition). This is typically used in areas such as Croydon where cheffings (stabbings) are more common.
Roadman definition: Ight brudda, u man should know what the oppblock is u fuckin dickhead', its where them pagans who pree'd your B lives ygm brudda. Ight so safe fam, go chef up them man wit da skeng, in the AF1's still. Safe darg
Roadman Example 1: Brudda i saw tazz go from endz to *opp block*, i pulled up in ma german and aksed him '' ARE YOU SKUNKED, WHY U GOING TO DEM MANZ ENDZ U DICKHEAD''
Roadman Example 2: What a neek fam, man will tump him down g
Wagwan(in roadman) means hello. This will often be used by roadmen in Britain to communicate with their friends or "mandem". Do note if someone approches you and says that either... Run away or lose all respect for them.
Wagwan, my man, what you sayin'