That's an idiom indeed. You say that to tell someone they're welcome to drop in on you.
The etymology... Well, there was a custom way back in the day to put a burning candle on a window ledge....
Type: Posts; User: iCake; Keyword(s):
That's an idiom indeed. You say that to tell someone they're welcome to drop in on you.
The etymology... Well, there was a custom way back in the day to put a burning candle on a window ledge....
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