Drop a line
Meaning
To send a short, often informal, written message to someone.
Origin
The phrase "drop a line" emerged in the late 19th and early 20th centuries, a period dominated by handwritten letters and the burgeoning telegraph system. It captures the simple, casual act of sending a brief written message – literally 'dropping' a note into a mailbox or relaying a few 'lines' of text over the wires. This image evokes the ease and informality of quick communication, distinguishing it from the more formal process of drafting a lengthy letter. It became a beloved idiom for making contact without the expectation of an elaborate reply, simply to say hello or provide a quick update.
Examples
- I'll drop you a line once I arrive at the hotel to let you know I'm safe and settled in.
- It's been too long; you should really drop a line to your grandmother soon.