WordNet
drop a line
v. communicate (with) in writing; "Write her soon, please!" [syn: write]
Usage examples of "drop a line".
Also allows the tip of the mast to hang over the hold, so that they can drop a line and haul cargo out.
I'll lock it up in my strong box now and drop a line to the Countess to say that we have it.
Don't drop a line like that on me without some kind of an explanation to go with it.