“Cabbage: the age of a taxi”

There is no “cab” in “cabbage,” but there are jokes.
 
”Daffynishion: Cabbage — The age of a taxi. — Dave Shotzberger, Winterthur, Del.” was printed in Boys’ Life on January 1964. “DAFFYNISHIONS (...) Cabbage—The age of a taxi” was printed in the Chillicothe (MO) Constitution-Tribune on February 21, 1964.
   
“What do taxi drivers eat?”/“Cabbage” is a related riddle.
   
   
Google Books
January 1964, Boys’ Life, “Think and Grin,” pg. 58, col. 1:
Daffynishion: Cabbage — The age of a taxi. — Dave Shotzberger, Winterthur, Del.
 
Newspapers.com     
21 February 1964, Chillicothe (MO) Constitution-Tribune, “DAFFYNISHIONS,” pg.. 4, col. 3:
Cabbage—The age of a taxi
 
Newspapers.com
24 April 1969, Vancouver (BC) Sun, pg. 48, col. 4:
Q: What is a cabbage?
A: The age of a taxi.
 
Newspapers.com
12 May 1978, Charlotte (NC) Observer, “Yuks,” pg. 19C, col. 4:
Cabbage
The age of a taxi
 
Google Groups: rec.humor
C
David Coble
Aug 10, 1995, 3:00:00 AM
Cabbage:
1. A Familiar Kitchen-Garden Vegetable About As Large And Wise As A Man’s
Head.
2. The Age Of A Taxi.
   
Google Groups: rec.humor
DAFFINITIONSo
Nancy Carson
Jun 5, 1996, 3:00:00 AM
(...)
Cabbage…............The age of a taxi.
   
Google Groups: rec.humor
de-fun-itions
Sheila Feiger
Nov 26, 1996, 3:00:00 AM
(...)
Cabbage…............The age of a taxi.
   
Twitter
inger eriksen
@morosamt
Cabbage: the age of a taxi.
7:45 AM · May 7, 2010·Twitter Web Client
 
Reddit—ApparentJokes
Posted by u/DokCyber August 25, 2021
Cabbage: the age of a taxi
Cabbage: the age of a taxi
     
Twitter
DocDog
@DocAtCDI
Cabbage: the age of a taxi
10:28 PM · Nov 28, 2021·PunsByDocAtCDI
 
Reddit—ApparentJokes
Posted by u/DokCyber November 28, 2021
Cabbage: the age of a taxi
Cabbage: the age of a taxi