Top definition
ilsmis is an acronym for I laughed so much I snorted. It's happened to you before, hasn't it? :) Particularly useful in text and IM conversations. Also easy to say as a word. This acronym has aspirations to be used all over the universe. Spread the word, people!
ihearthotels: did you see that youtube video?
danceislife: heck yes! ilsmis!!!

by Nikki H March 11, 2008
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