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1.
A summary of an event given by a stupid person. Instead saying he summed up an event you would say that he sdummed up an event. The origion of the term is from an internet newsgroup called 'The Texas Thai's', circa: 1997.
The term 'sdums' is now widely used on all newgroups.
Nick really sdummed that up nicely.
by Toki January 25, 2005