KMSL
KMSL definition by Slang.net
This page explains what the acronym "KMSL" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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After you send someone a hilarious joke or anecdote, they may respond with KMSL (killing myself laughing). People who send you this acronym are likely not actually dying. Instead, they're dying.
You may also encounter KMSL on social media, in posts responding to a funny story or video. However, KMSL is used much less frequently than LOL and other more-common expressions of laughter.