Despite being associated with a famous wrestler , a Vin Diesel picture and hard-core pornography , the sign - off ‘ xxx ’ at the end of a message is ubiquitously and uniquely used to symbolise a wholesome trio ofkisses . In Spanish , however , the letter of the alphabet X is shorthand for ‘ por ’ , meaning ‘ for ’ or ‘ by ’ , so the contact between this various quality and caressing is clear not inherent .

Like many cultural peculiarity , the origins of the use of tenner ’s as kisses are difficult to trap down . According to Dr Laura Wright from the Faculty of English at Cambridge University , the tradition may have something to do with the fact that the Grecian varsity letter hug drug ispronounced ‘ ks ’ , which apparently sound a lot like ‘ buss ’ .

Yet other research worker favor a dissimilar explanation , also beginning with the Greek rudiment . Supposedly , because the Hellenic word for Christ - Χριστός - start with an X , the letter itself was antecedently used to symbolize the Christian faith - hence the continued use of ‘ Xmas ’ as shorthand for Christmas .

In the Middle Ages , when many people were ignorant , the alphabetic character X was often used in lieu of a signature tune on content and prescribed text file , intend a somebody ’s veneration to Christianity . Supposedly , it was also popular to physicallykiss the markonce it was made , out of erotic love and trueness to one ’s religion .

seal a message ( signed X ) with a kiss thus became common , cementing the connection between the letter and physical show of affection . Over time , as the religious intension faded , the character derive to exclusively representkissing , although exactly when this transition occurred is the subject of public debate .

The Oxford English Dictionary , for instance , attributes the first known use of X ’s as kisses to a   1763 letter of the alphabet penned by British natural scientist Gilbert White , who sign on off : “ I am , with many a xxxxxxx and many a Pater noster and Ave Maria , Gil White . ”

However , pass the spiritual lyric go with the outrageous seven kiss , some scholars have argued that White ’s cristal ’s are more probable to have represented holy blessing than smooches .

It ’s therefore jolly difficult to say who first ended a communication with kiss , although it seems the slang had become well and truly establish by the timeWinston Churchillwrote aletter to his momin 1894 , ending with : “ Please excuse uncollectible writing as I am in an awful hurry . ( Many buss . ) xxx WSC . ”