Didst an about face is an archaic phrase that combines the verb "didst" (an old-fashioned second-person singular past tense of "do") and the noun "about face." It refers to an abrupt or complete change in one's thoughts, opinions, attitudes, or direction.
The term "about face" is often used in military contexts, specifically in drill movements, where soldiers are required to turn around abruptly and face the opposite direction. This action is executed with precision, discipline, and a sharp change in orientation. Metaphorically, "about face" implies a turnaround or reversal in one's stance or position, resulting in a complete shift from the previous course or viewpoint.
When combined with "didst," which carries the sense of performing an action in the past, "didst an about face" signifies that a person has already gone through such a notable change. This could involve a sudden alteration in beliefs, attitudes, or behaviors. It can also imply a 180-degree turn in one's decision-making or approach to a situation. The phrase implies swiftness and decisiveness in reversing one's course.
Overall, "didst an about face" is a rather old-fashioned expression that conveys the notion of undergoing a stark and sudden change, particularly in relation to one's mindset, opinions, or actions.
