LOL

Acronym for laugh out loud used mainly in written, digital communications like text messaging and email. The OED found instances of its usage dating from 1960 when it meant ‘little old lady’ or ‘lots of love’ but these days laugh out loud is the generally accepted meaning even if it is more of a throw-away comment rather than a literal case of laughing out loud. (There are now so many acronyms used in text messaging as to make it unfeasible to include more in the idiomorigins.org database. For those who want more, please visit websites like www.webopedia.com)