The Harvey Wallbanger is a cocktail, invented in 1969, that was ubiquitous in certain types of aspirational '80s tv shows. To make it one blends vodka and orange juice then floats Galliano on top. A Hervey Mudbanger is an altogether classier cocktail: start by mixing four keen Good Gymers and Hervey Road Sports field in Blackheath, add them to gardening tools and a large overgrown area of grass and weeds and get them to dig them up, the mudbanging element being the need to remove large sods of earth from the dug grass. Great care is required in the making of this cocktail as rare plants and weeds must be left intact but the cocktail was made successfully and the park is already looking a lot better,. Cheers.