What is high jack?

Answer 1

"Hijack" is most often associated with the seizing of an aircraft but the word itself was first used to describe the theft of goods in transit, a phrase established in the U.S.A. during the 1920s and possibly derived from the word 'highway'. The first successful aircraft hijacks were in 1948. It was the late 1960s that "hijack" was adopted to mean the seizing of an aircraft by force. Early in that decade, for a short time the word 'skyjack' (coined by a New York newspaper in 1961) was the term of choice.