“Liver alone, cheese mine!”

“Liver alone, cheese mine!” is a jocular way of saying “Leave her alone, she’s mine!” The joke—with a Mexican speaker using the line—was posted on the newsgroup alt.tv.xena on July 22, 1997.
 
The joke has been printed on many images.
       
 
Google Groups: alt.tv.xena
The Decline and Discrimination of Hispanic Actors in the U.S.A.   
Romar666
7/22/97
(...)
Actually, the reason there are so few hispanic actors in the U.S.A. is their inability to pass the “liver and cheese” test whereby they have to use the words liver and cheese in a sentence.
 
I had a liver and cheese sandwich for lunch is an acceptable response.
 
Liver alone, cheese mine is an unacceptable response.
 
Google Groups: aus.jokes
Liver and cheese
Bjørn-Ivar Sigbjørnsen
9/30/98
A Mexican, a black, and a white guy are in a bar having a drink when a good-looking girl comes up to them and says ‘’ whoever can say liver and cheese in a sentence can have me’‘.
So the white guy says’’ I love liver and cheese’‘. she says ‘‘that’s not good enough’‘.
The black says ‘‘I hate liver and cheese’‘, and she says ‘‘that’s not creative’‘, and then the Mexican says ‘‘liver alone cheese mine’‘.
 
Google Groups: es.rec.humor
Best Joke I’ve seen in a long time!
Vasiladora
5/10/99
An american man, a canadian man and a Mexican sit down at a bar. A beautiful woman walks in and sits down right next to them. The three begin an argument over who will approach her first. Used to this, the woman turns to them and says, “Listen boys, I’m a woman of culture and which ever one of you can use both the words liver and cheese in the same sentence can take me home.”
“That’s easy,” said the american guy. “I like liver and I like cheese,” as he gestures for her to come over.
“Oh, not good enough!” says the woman.
With that, the canadian man said “Aww shit, don’t be givin’ me no liver and cheese!” and starts moving towards her.
“No, no! That won’t do either,” the woman replies with a wave of her hand.
The Mexican looks at his friends like they arenuts, walks up and puts his arm around the woman and smiles, “liver alone, cheese mine.”
 
22 September 1999, Rocky Mountain News (Denver, CO), “Spotlite,” pg. 2D:
“Liver alone, cheese mine.”
     
Google Books
Internet Joke Book - Volume Two:
Fresh Jokes, Bizarre Humor and Witty Satire
By Keith Evans
Xlibris Corporation (Xlibris.com)
2000
Pg. 113:
He gives her a smile, a sly wink, turns to the Golden Retriever and Black Lab, and says, “Liver alone! Cheese mine!”
 
22 September 2000, Daily Record (Glasgow, Scotland), “Heard the one about…?,” pg. 8:
The last of the three, tiny in stature but big in finesse, is the Taco Bell Chihuahua. He gives her a sly smile and a wink, saying to his cohorts: “Liver alone. Cheese mine.”
 
Twitter
regioblogs2‏
@regioblogs2
The black says “I hate liver and cheese”, and she says “that’s not creative”
Then the Mexican says “liver alone cheese mine.”
7:05 PM - 31 Mar 2008
 
Graphic Joke
Liver and cheese.
October 30, 2012 by grin
An English Bulldog and a Chihuahua are in a bar when a Border Collie comes in. She says to the two, “Hello boys. If you can use liver and cheese in a sentence,  I’ll let you buy me a drink.”
 
The Bulldog says, “I rather like liver and cheese.”
 
The Chihuahua says to the Bulldog (in his his best Taco Bell accent), “Liver alone, cheese mine!”
 
Google Books
Word Play Jokes
By Joe King
Marine Publishing
2016
Pg. ?:
Finally, the Chihuahua says, “Liver alone, cheese mine.”
 
Twitter
charlize 🍦‏
@charlizejta
“liver alone. cheese mine.” –dad, 2017
8:33 AM - 1 Nov 2017