Wiktionary
zam-buk
n. 1 Proprietory brand of skin-dressing formerly sold in chemists and used by first aid attendants at sports events 2 (Australia and New Zealand) By extension, first aid attendants at sports events
Wikipedia
Zam-Buk
The source of the name is uncertain, but a link to South Africa has been suggested . The brand name was at one time used to refer to ambulance-men and first aiders at rugby league matches in Australia and New Zealand.