I probably first heard "How the money rolls in", shortly after having joined the Royal Navy in 1957. This song, as a Rugby song, is a never-ending series of ribald verses about how various members of the family get fantastically wealthy by various illegal and often pornographic means. A somewhat watered-down version of this kind of thing can be found in
Rugby Songs whilst the heavily sanitised version that I sing today can be found in
101 Pub Favourites for Buskers.