出典:Wiktionary
(This etymology is missing または incomplete. Please add to it, または discuss it at the 語源 scriptorium.) Possibly from the French "en pointe" meaning to be on the tip of the toes in ballet and reflects a higher degree of skill. "On point" also describes a degree of competence and in the military the man "on point" was at the front and most exposed position in a combat military formation, that is, the leading soldier or unit advancing through hostile or unsecured territory. In recent American youth (especially hip hop) culture, the idiom "on point" refers either to someone who possesses abundant and various qualities of competence, leadership or style, or to specific acts which demonstrate such qualities.