Pronounced {Om-Soul}

Abbreviation of Open Mouth Silent Laughter. This is when you laugh so hard that you just bend over with your mouth wide open, shaking without making a sound and just looking ridiculous.
"Amber just OMSLed off of her chair!"
by Velocirock January 16, 2010
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SAME as PMSl except a typo.
Commonly used by drunks and idiots who cannot type.
How are you.....you twit OMSL
by snappy November 18, 2003
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