A fork of Rural Dictionary
XSWL is Chinese slang meaning basically the same thing as LMAO. It's comprised of the characters 笑（xiào）死（sǐ）我（wǒ）了（le）
A texting conversation Person1: Ever since he feel into the bin last year everyone's been calling him bin boy. Person2: xswl Person2: So funny
It's a word which'laughed me to death'. This is a word from China, it comes from the Chinese Hanyu Pinyin, and since Hanyu Pinyin uses English, XSWL is the initial letter of each Chinese character Hanyu Pinyin.