A “shopaholic” is someone who loves to shop. The joke word formation implies that a “shopaholic” is addicted, like an “alcoholic.” Similar words include “workaholic” and “chocaholic.”
 
The word “shopaholic” has been cited in print since at least 1976.
 
         
Wikipedia: Shopaholic
Shopaholic is a term used to describe individual who consider themselves as addicted to shopping.
 
Shopaholic can also refer to:
 
. A slang term for Compulsive Shopping also known as Compulsive buying disorder
. Shopaholic (novels), a series of books written by Sophie Kinsella
.. Confessions of a Shopaholic (film), a 2009 film adaptation of the first book in the Shopaholic novels series
. Shopaholic (TV series), a Norwegian television series broadcast by TV3
. The Shopaholics, a 2006 Hong Kong film
 
Wiktionary: shopaholic
Etymology
shop + -holic
Noun
shopaholic (plural shopaholics)
1. One who shops very frequently.
Shopaholics lose a lot of their money and possibly go broke because they’ve spent it all.
2. Common term applied to someone suffering from oniomania.
 
(Oxford English Dictionary)
shopaholic, n.
colloq.
[f. SHOP n. or v. + -AHOLIC.]
A compulsive shopper.
1984Washington Post 11 Sept. C3/4 [The rumour] that Diana is a ‘shopaholic’..was described as ‘absolute rubbish’.
1985 Times 21 Oct. 3/3 The Princess is not a shopaholic, nor is she a determined and domineering woman.
 
13 February 1976, San Antonio (TX) Light, “Resorters Rush to Buy” by Marji Kunz (Knight News Service, pg. 7B, col. 2:
PALM BEACH, FLa.—The old resort crowd is back.
(...)
Along Worth Avenue—a sparkling never-never land for shopaholics—the fashion-fanciers rush to Chuck Jones boutique to buy crinkly white gauze handkerchief-pointed skirts with floaty gauze tops.
 
Google News Archive
18 April 1976, Palm Beach (FL) Daily News, “I’ll Buy That” by Millie Wolff, pg. 5, col. 1:
“Always Taka a Lunch Break”
As a shopaholic I would like to share with you some valuable breakthroughs discovered on my rounds. Never shop on an empty stomach.
 
Google Books
The Washington Post Guide to Washington
By Laura Longley Babb, Claudia Anderso and Sabina Parks (Washington Post Writers Group)
New York, NY: McGraw-Hill
1978
Pg. 260:
In plain and simple fact, Washngton is a town of “shopaholics” — comparative and complusive.
 
Google News
22 June 1978, Sarasota (FL) Herald-Tribune, “‘Shopaholic’ Turns Pastime Into Profit,” pg. 6B, col. 1:
WEST BLOOMFIELD, Mich. (UPI)—Gloria Check admits she is a “shopaholic.”
 
She has an eye for fashion and absolutely loves to shop—at sprawling malls and tiny boutiques, discount stores and garage sales.
 
23 September 1979, Trenton (NJ) Evening Times, Magazine, pg. 9, col. 1:
But never fear, salvation is near. And you really can’t keep a good shopaholic down.
 
Google News Archive
12 September 1980, Evening Times (Scotland), “Is shopping a drug or a drag?” by Stephen Brett, pg. 9, col. 1:
At the euphoric end are the “shopaholics,” who daily disprove the idea that money doesn’t buy happiness.
 
Google Books
Modern American Usage:
A Guide
By Wilson Follett
Edited by Erik Wensberg
New York, NY: Hill and Wang
1998
Pg. 290:
It gave us also workaholic and shopaholic, whose frail link with sense could have been the root -cohol, which is absent in both.