A violent "sport" taken up by drunk (ocasionally high) men. The Homosexual population of a certain area may be found and verbally abused, in some cases it has be known that "puffs" have been assaulted physically.
A cockberg is a rather large however lumpy penis. it takes a blocked shape and has a small bulge at the top of the penis. While in the bath the upper part of the penis looks like an iceberg, hence the term cockberg.