Ukukhanya- usually get the nickname Khanya. Ukukhanya can be used for both girls and boys. Ukhukhanya's are people who generally are quite argumentative but not so much in person. They love their friends, they presume they have best dress style ever only problem is they don't have the money to fund their true style yet. They usually have an elite sense of humor and taste in music that they expect most girls/guys to notice. They are usually first born or middle children so the bear that weight also of not getting much attention. Ukukhanya's are also somewhat shy upon initial encounter. They are quite lonely but are waiting for the right one and boy do they love themselves some light skin men/women or biracial. Height wise- not tall but also not short. They may come off a little cocky but don't worry all bark no bite.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”
Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.