The act of sending SMS text messages to your friends while laying a bog. Usually Scat MSers are too busy at work, and so the only time they can reply to ordinary SMS messages is while they are in the comfort and quiet space of the shitter.
I had 5 messages in my inbox, and I was so busy, I had to reply to them all with a Scat MS.
by Goota December 19, 2006
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