shaking with laughter (generally used online)
Sasha: That teacher made me cry so hard that I snarfed all over the desk

Madeline: swl
by Ice Cream Is My Life April 5, 2009
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"Wow I am totally swl-ing right now at that weird teacher!"
by eugol January 4, 2009
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I asked what she was doing tonight and swl I have to work.

BBB Lingo.
by BlackberryBandits October 28, 2010
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I was watching Russel Peters when i accidentally swl. Fml.
by Yamottoman October 21, 2009
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Madeline: Andrey was being so funny in ballet class today.
Sasha: Really? What was he doing?
Madeline: He made all of these funny faces and was trying to be "Arabish."
Sasha: HAHAH! SWL!
by doremifasolatido November 16, 2009
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Same wavelength; when you are in sync with someone else to the point where your brain waves are on the same wavelength. Generally only used in text or written down as an abbreviation, not spoken.
You're going to eat lunch there tomorrow? Me too! SWL.
by burnashburn March 14, 2018
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Sternly worded letter
Instead of investigating rampant abuses of power, members of congress sent a SWL.
by pips00000000000 March 12, 2009
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