- (Australia, New Zealand, colloquial) a health campaign in Australia and New Zealand exhorting people to "slip on a shirt, slop on sunscreen, and slap on a hat" when they go out into the sun in order to prevent skin cancer.
- The Cancer Council believes its Slip Slop Slap campaign has played a key role in the dramatic shift in sun protection attitudes and behaviour over the past two decades. People are covering up more and making better use of shade. The Cancer Council Australia website.
- 1999 - For example in Australia, the ‘Slip Slop Slap' programme (Slip on a shirt, Slop on sunscreen, Slap on a hat) has resulted in a marked reduction in the total of sunburns during the summer. Reducing the Odds: A Manual for the Prevention of Cancer - P 190. by Gabriel A. Kune