LACLAS

acronym: Laughing And Clapping Like A Seal.

For use in modern text based communications, particularly live chat, this abbreviation indicates that something of such overwhelming hilarity has been said that the chatter has shot past the lol turn off & has now gone all the way to uncontrollable, often silent laughter accompanied by dimwitted applauding in the manner of a trained seal. And rocking, there's usually also rocking.