A gamer who feels the need to brag about their nonexistent sex life.
Person 1: "Dang man, I've been having so much sex lately."
Person 2 whispering to person 3: "Your friend is a total swamo. Like I hate him right now."
by Rake1 July 22, 2015
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A bearish move in a stock market when the price drops massively or gapped down
Hey bro, did you see that stock? it has been hit by a swamo...

or

Here comes the swamo on oil... shorting time!!
by fingercrossovic August 25, 2017
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