“Zucchini: Vegetable that can be baked, boiled, fried or steamed before kids refuse to eat it”

A jocular definition of zucchini is:
   
“Zucchini: Vegetable that can be baked, boiled, fried or steamed before kids refuse to eat it.”
 
The jocular definition was posted to the newsgroup misc.kids.breastfeeding in 1998 and possibly comes from the book The Mom Dictionary (1993) by Valerie McKeown and Chris Brethwaite.
 
 
OCLC WorldCat record
The mom dictionary
Author: Valerie McKeown; Chris Brethwaite
Publisher: Kansas City : Andrews and McMeel, ©1993.
Edition/Format:   Print book : English
   
Google Groups: misc.kids.breastfeeding
mother’s dictionary (a little off topic:-) hope it;s ok
Josh
3/29/98
(...)   
ZUCCHINI: Vegetable which can be baked, boiled, fried or steamed before kids refuse to eat it.
 
Google Groups: alt.support.dystonia
Humor
Gene
10/13/98
A Mom’s Dictionary
(...)
ZUCCHINI: Vegetable which can be baked, boiled, fried or steamed before kids refuse to eat it.
 
21 June 2003, Daily Press (Timmins, ON), “Definitions not definitive” by Steve Elliott, pg. 21:
Yam: Vegetable which can be baked, boiled, fried or steamed before kids refuse to eat it.
 
Twitter
Renee Lewis‏
@ChiefCatalyst
#definition ZUCCHINI: Vegetable that can be baked, boiled, fried or steamed before kids refuse to eat it. (It’s true!)
5:32 PM - 29 Mar 2009
 
Twitter
Garadziva Chigamba‏
@Bhonzo
What is Zucchini: Vegetable which can be baked, boiled, fried or steamed before kids refuse to eat it.
9:28 AM - 13 Apr 2017