A close-fitting garment often worn while surfing or during other water sports under a wetsuit to prevent chafing and provide UV protection and in some cases extra warmth.

(surfing) A scraping injury caused by falling on or being dragged over a reef.

A rash acquired by kissing someone who has stubble.

plural of reef rash

red-gum

(colloquial) minor damage caused to an aircraft caused by collisions with a hangar, structures, or another aircraft.

(medicine) Itchy, swollen, red areas of the skin which can appear quickly in response to an allergen or due to other conditions.

plural of nappy rash

miliaria

Any of various heat-related rashes, including some forms of miliaria and vasculitis.