A plane that existed more on paper than in actuality. Produced in extremely smallnumbers or prototype levels.
The J-8II PP is an unicorn airplane because it was an American upgrade package to the J-8II but never delivered due to sanctions around Tiananmen Square.
When someone cuts themselves off from the world by not logging on to Facebook or checking their cell phones. Usually occurs after a breakup or a rough work week.
Derived from the cell phone setting of the same name in which incoming messages or phone calls cannot be received.
"Dan won't answer your calls. He's in airplane mode."
"Sarah went into airplane mode for three days after Charlie dumped her."
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.