An animal species that is almost entirely sterile females being slaves to a fertile queen who gets regularly fucked by simp males (this organization is called a colony). Most eusocial animals are insects (bees, termites, ants...) except for some weirdugly ahh naked mole rats living in underground colonies.
A political philosophy advocating highly cooperative, decentralized, mutual-aid communities in which individual identity is preserved but subordinated to collective well-being, without centralized authoritarian control.
From socialism: implying collective ownership or management of resources for the good of the whole, rather than competitive, individual accumulation.
From eusocial: implying extreme, structured cooperation where the needs of the group are paramount, but individuals retain some roles and freedom.
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.