Defwin is short for 'default win', used in both e-sports and normal sports tournaments to describe a win you got by default, if your opponent doesn't show up. It is the opposite of a 'deflose'.
'Our enememies won't show up, so we will get a defwin :)'
'Sweet, a defwin'
'Damn, I got a defwin but I wanted to play :('
by Yakiro August 2, 2009
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