Definitions by MoreEarthier

San Francisco Door Bell 

Noun—A San Francisco Door Bell is an advance warning text message sent in lieu of actually knocking upon someone's door. Particularly useful on the steep hillside residences of San Francisco.

Sent at 4:50—Hi Winkydink. Be there in five. This is your San Francisco Door Bell.

San Francisco Door Bell by MoreEarthier March 16, 2012