Chin up is a phrasal verb which means "to raise one's chin upwards."
The earliest known use of the phrase in print is from 1811, in the novel The Monastery by Sir Walter Scott: "She raised her chin, though not with the air of defiance which I had remarked."
Meaning:
To hold one's head high, despite adversity:
"She chinned up and faced her fears."
To be optimistic or cheerful:
"Chin up, things will get better."
To improve one's posture:
"Keep your chin up and your shoulders back."
Origin:
The precise origin of the phrase is unknown, but there are several possible explanations:
Physical exercise: Chin-ups are an exercise that involves lifting oneself up on a horizontal bar by the chin. The phrase may have originated from the idea of holding one's chin high during the exercise.
Military posture: In the military, soldiers are often trained to hold their heads high with their chins up as a sign of discipline and authority.
Metaphorical meaning: Holding one's chin up can be seen as a metaphor for overcoming challenges and maintaining a positive attitude.
Usage:
Chin up is commonly used in both spoken and written English. It is often used as an encouragement to someone who is facing difficulties or feeling discouraged.
Example sentences:
"Chin up, you're doing great!"
"Despite the setbacks, he chinned up and kept going."
"I try to chin up and stay positive, even when things are tough."