All the crap that you have read on the internet about the origin of the word-expression XO is only that, crap. I will reveal to you how that combination of letters-word was created, because I invented it.
It was in the mid-1990's in Havana. I was already an artist making a living from the sale of my paintings. In the year 1993 the Cuban government legalized the possession of U.S. dollars. That was just right after I came out of art school. The Soviet Union had collapsed and Cuba have entered in one of its major economic crisis in history, prompting a demise of the value of the Cuban currency, the peso, and a huge leap of inflation that made the rate exchange between the peso and the dollar jump to a top 150 Cuban pesos for a 1 American dollar.
In this conditions one dollar represented the salary of a whole month of work for an average Cuban worker. It is understandable then that the ones who got lucky enough to throw their hands on any dollar bill where becoming steadily rich. I was one of them, selling my artwork having finished art school as a fresh young artist.
I was concerned about two things regarding the huge production and sales I was immersed in. First was the effect that excessive commercialization could have had in my work (art historical issues were and and are important, but survival was and is even more) Second, the fear of retaliation by the government to my increasing criticism of the political system. I have had some brushes with the law before (read
"Young Communist Make Street Art") and I didn't want theses brushes to be repeated.
Two tactics were put into place in order to avoid skirmishes with repressive forces. One of them involved codification. Codification in this context meant that I could say anything I wanted as long as it was unreadable to the layman and only accessible to the eyes of the expert or the initiated. I remember particularly one work that I made and showed in a public space during the days Pope John Paul II visited Cuba. On the surface of this work on canvas I had written the phrase "I Shit on Fidel" (Me Cago en Fidel y Me Cago en el Papa). But the way it was written, using different colors for each letter against different backgrounds made the phrase unreadable, unless you spent time finding the connection between the words. Look out for this important painting, it is somewhere in Europe and I have lost track of it.
(I also made several paintings making fun of the Commander in Chief, they depict a mad looking guy with a cigar. The title of this series of works is "Cuban Cigar", because the Commander in Chief meant only a Cuban cigar to me. They are also signed XO and they are in the possession of an Italian collector. The painting with the "I s..t on Fidel" words may be in Italy also.)
This piece was shown publicly and the meaning was revealed only to my trusted ones, who in turn passed the word out to their trusted ones resulting in social communication without repression. After I displayed the painting and revealed the meaning to my manager she told me: "Are you crazy, do you want me to go to prison?" Fortunately nobody was hurt or imprisoned; not me, not my manager.
That brazenly direct work was signed with the words XO. The word XO I was already using for this kind of politically overcharged works since months before.
All the works signed XO are now dispersed in private collections in Europe. I must say that despite the political bent, or right because of that, they are some of the most interesting and authentic works I ever made.
So if you happen to get across one of this canvases signed XO in the front or in the back, or both, you know they are actually mine. And their value have increased dramatically.
Years after I left Cuba the word XO have become mainstream. While I was in Cuba I neither was aware nor had access to the copyrighting of my work. So I was never able to copyright it. So much the better, perhaps if around the year 1995 I had put a copyright on XO the expression would have never become so popular and also imbued with so many meanings such as Love, Hug, Kiss. etc. Actually when I created it meant all these things and probably that is the reason it has become so popular.
Now, if you are one of the lucky ones who purchased one of these XO signed paintings during the 1990's, then you know you are a whole lot of a lucky guy.