1 definition by poptartunicorn

Top Definition
Smiling and laughing slightly. Can be used as a replacement for LOL. Most of the people typing "LOL" never actually laugh out loud, that's where SALS comes into play.
Thought to be originated from imgur.
Person1: "Schrodinger's cat walks into a bar, and doesn't."
Person2: "SALS"
by poptartunicorn September 19, 2011

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