lwab is an acronym which stands for laughing with a butt. It has become popular in the Metallica chat on AIM. First coined by a wise man named Deg, the phenomenon has swept the internet at an alarming rate and has become part of the common internet lingo for many people; including up-and-coming chatters looking to imitate, and even seasoned veterans who have included it in their everyday terminology. It often replaces lmao, lol and rofl, common online acronyms
Person 1: yeah he's stupid all he says is 'pp LOLOLOL'
Person 2: he's so retarded, lwab
by fifthofnovember December 09, 2006

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