Gary Neville described Chelsea as "Blue Billion pound Bottle Jobs" as they were beaten in the Carabao Cup final by an injury-hit Liverpool, who were playing their under 13s
To hurt someone unexpectedly, typically with a pinch, to mimic a bluebottle jellyfish sting. When they ask "what was that for?" Yell "BLUEBOTTLE," and urinate on the afflicted area.