Coffee-pot Lawyer (talkative taxi driver)

A “coffee-pot lawyer” is a New York City term for a taxicab driver who is opinionated and very talkative. The term has been cited from 1932 and is of mostly historical interest today.
 
 
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19 August 1932, Washington (DC) Daily News, “Taxi Drivers Siphon Million Gallons of Gas From Cab Tanks,” pg. 20, col. 4:
NEW YORK—(..) “Coffee-pot lawyers”—shrewd cab drivers who are legally minded to advise their comrades to maintain that the gasoline was used up in heavy traffic or siphoned while they were having a meal.
 
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19 August 1932, The Evening News (Wilkes-Barre, PA), “Taxi Drivers Siphon Gas From Autos,” pg. 4, col. 3:
“Coffee-pot lawyers”—cab drivers who have a native legal shrewdness and are equivalent to the old fo’csle lawyer of sailing ship days, are partly responsible for the condition, according to Ellis Steinhardt, secretary of the New York Taxicab Industry, Inc.
 
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7 January 1933, Springfield (MA) Daily Republican, “Taxi Slang ‘Englished’ For Those Ignorant of Drivers’ Technical Talk,” pg. 6, col. 5:
New York, Jan. 6—(AP)—The hackmen, it developed today, take English, too, for a ride.
 
A glossary of taxi slang issued by the New York Taxicab Chamber of Commerce contains the following definitions of the argot:—
 
Coffee pot lawyer—A talkative driver.
 
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16 January 1933, Illustrated Daily News (Los Angeles, CA), “Town Talk” by E V. Durling, pg. 20, col. 5:
I have heard a taxicab driver who talked too much to a fare described by his colleagues as “a coffee-pot lawyer.”
 
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5 October 1936, Stamford (CT) Advocate, “In New York” by George Ross, pg. 6, col. 6:
And if you happen to climb into a cab manned by a particularly talkative pilot there is some comfort in knowing that the boys in the profession would dub him a “coffee-pot lawyer.”
 
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15 September 1941, The Daily Worker (New York, NY), “Double Jeopardy Irks City Cab Drivers,” pg. 4, col. 7:
Muttering something about double jeopardy, I stagger home bewildered. I ain’t no lawyer, maybe a coffee pot lawyer, but I did think that a man can’t be tried twice for the same offense, once acquitted.