ALM/BLM is an abbreviation which means “All Lives Matter when Black Lives matter” this is typically used to pledge support to African Americans who suffer within the government. You might find this abbreviation in a Gen Z’s bio.
ALM/BLM means “All Lives Matter When Black Lives Matter” which you may see this term in social media bios to pledge support for the African Americans who suffer from racism and to show awareness of the hate crimes against African Americans. So just know if you see this it’s not a negative term. You may see this more frequently in the bio of Gen Z who’s political opinions are independent but support Donald Trump.
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.