“Cowgirls Rule” (from earlier “Girls Rule, Boys Drool”)

“Cowgirls rule!” appears frequently on T-shirts for girls, especially young girls. This saying is seemingly taken from the earlier and slightly longer “Girls rule, boys drool” (popular on T-shirts in the early 1990s). “Cowgirls rule” appeared in print by at least 1996.
 
     
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10 April 1994, San Jose (CA) Mercury News, pg. 1B:
”... should always put it back because animals might live there and stuff,” says Leah, whose sweat shirt announces “I am a girl and girls rule. Boys drool.” 
 
Google Groups: rec.sport.rodeo
Newsgroups: rec.sport.rodeo
From: “Corylee D. Gardner”
Date: 1996/11/04
Subject: Re: of interest to cowgirls
 
Just got a new bumpersticker for my trailer and a cap to match.  Let me know what you think.
“COWGIRLS RULE
always have always will ”
 
28 August 2001, San Antonio (TX) Express-News, pg. 1D:
Emory’s loose-fitting T-shirt, the words “Cowgirls Rule” sprinkled on in glitter, is as racy as it gets at her house, Tammy says.
   
Google Groups: alt.support.step-parents
Newsgroups: alt.support.step-parents
From: .(JavaScript must be enabled to view this email address) (Caitriona Mac Fhiodhbhuidhe)
Date: Fri, 02 Aug 2002 20:09:42 GMT
Local: Fri, Aug 2 2002 3:09 pm
Subject: Re: How lenient would you be? [long]
 
>> But would you allow tshirts that say things like, “Cowgirls rule.
>Cowboys obey” ?
 
>Don’t have to think much about that where we live—someone wearing a shirt
>like that would be laughed at, I’m afraid.
 
>My daughters have the ones that say “Princess”, and my oldest daughter has
>one that refers to “Girls Rule, Boys Drool” (given to her by an aunt).
 
LOL… not much different from YD’s “cowgirls rule” tshirt.
   
Google Groups: rec.sport.football.college
Newsgroups: rec.sport.football.college
From: “Carl Lundstedt”


Date: Mon, 22 Sep 2003 10:51:23 -0500
Local: Mon, Sep 22 2003 10:51 am
Subject: Re: NFL Cheerleaders
 
I don’t know.  I saw the Houston Texans Cheerleaders during the KC game yesterday:
 
a) One girl didn’t get the “wear your leather pants instead of a skirt” memo.  Which I guess was ok since I doubt she could have squeezed into leather pants. (yikes)
b) Too much make-up.
c) Cowgirls rule, all others drewl.